Maya stunning bloom LED products listed

CCFL backlight issues such as color purity, poor performance in gradation, resulting in grayscale and color LCD transition than CRT. According to the test, using the NTSC color CCFL backlight can only achieve about 70% of the region, even through the use of improved CCFL light source, can only reach about 90% of the geometric NTSC color gamut, which is now wide color gamut display . The LED backlight NTSC color area is about 80%, another RGB LED backlight is a high-end design, NTSC color gamut area of ​​up to 100 percent, of course, the high cost of this design, temporarily appear in high-end LCD TVs. Overall, the color performance and gradation transition, LED backlight does have advantages over LCD.

Maya; X2010

"BLOONING" bursting with energy saving flag

2, LED long life, low power consumption, strong power, more environmentally friendly

I believe there are some old users will feel that his monitors started yellowing, after disassembled, there are not difficult to find the lamp has burned out. This is because the average life of CCFL backlight generally in about 25,000 hours, top CCFL backlight luminescence lifetime but also 60,000 hours, late in life, LCD brightness will be significantly decreased, had to replace the CCFL LCD backlight module. But at this stage the actual white LED backlight life of 50,000 to 100,000 hours, and the life of the LCD display are basically the same, but also the potential to increase again. Even 12 hours of continuous use every day, you can spend 10 consecutive years.

Maya; X2010

Power consumption, already mentioned above, the AC voltage to the CCFL requirements are relatively high, start up 1500 ~ 1600 Vac, then stabilized to 700 or 800Vac. They also require power inverter to a DC power supply, which increases the cost of the application, footprint and weight. In contrast, typical LED backlight subsystem 12 ~ 24Vdc or lower voltage. Actual power consumption, from the previous test, we can see that, CCFL designed 19-inch widescreen full power about 35W, while the LED backlight is 14W, super power.

I believe that many users purchase IT products, there RoHS see this sign, in fact, the instruction is representative of the electronic products do not lead, cadmium, mercury, hexavalent chromium, polybrominated biphenyls and polybrominated diphenyl ethers and other substances, and Mercury is the CCFL and other types of fluorescent lighting, the main ingredient, LED backlight not contain mercury, so now the United States and Europe have strongly recommended LED-backlit LCD.

3, LED LCD more light than the LCD

Maya; X2010

From the figure can be seen a structure, since the light emitting diodes and fluorescent tubes have different physical thickness, resulting in both the degree of the finished plate on a qualitative difference. Theoretically, LED backlit LCD CCFL backlit display thickness is only half the battle. Of course, LED-backlit LCD surface portion of the design is limited, if you display manufacturers to consider with a more robust built-in power solutions will increase the overall thickness of the CCFL backlit display will look like thick or less.

Maya; X2010

LED disadvantages:

1, the price to be slightly higher than LCD; initially launched in the LED, its construction cost is relatively higher than LCD, but with the development of technology, LED's cost reduction is inevitable, the price gap between the two will slowly narrow;

2, LCD technology reaching maturity; prevailed for the last ten years of research and development of LCD products, its technology is of course to come than the LED new maturity. However, as is the development of LED LCD, replace the LCD is inevitable!

Maya; X2010

Maya bloom X2010 is a 20-inch LCD, while in the performance, in addition to the above said Maya bloom X2010 LED technology brings three advantages, its 10 million: a high-contrast, no doubt so that the clarity of the display has been peaked, the best resolution 1600 * 900, 5MS response time, VGA port, and 250 lumens of brightness, can meet most of the needs of consumers. Meanwhile, there are 16:9 and 4:3 bloom X2010 conversion function to facilitate some of the needs of users, can be described as quite humane.

Maya; X2010 Maya; X2010

Currently, this new look extremely gorgeous Maya, priced at 1,099 yuan, a 20-inch LED LCD, this price is quite affordable, because the average 20-inch LCD is the price. Like Maya consumers of this  SUNGOLDPOWER product, you can sell.

Take a look at their own roof can be cost-effective to build power plants

Many people will have reached the newspaper hotline, counseling to establish a "rooftop power plant," the relevant procedures. Reporters consulted on the matter MOS power company. The company responsible person, willing to establish a "rooftop power plant," the public is best to call the customer service telephone 95598 National Grid power company business lobby or go for consultation.

The need for an independent roof and Small Business Committee agreed

"Roof station" school called "distributed photovoltaic rooftop power generation projects," works: installation of solar panels on the roof absorb solar energy, resulting in direct current through the wire imported combiner box, and then converted by the dc ac inverter daily use of 220 VAC.

According to Ma On Shan power company responsible person, a "roof power plant" you first need to separate the roof, and the Small Business Committee agreed, and taking into account the power station in the grid power supply does not affect other users. So, to remind the public of the company: If you go to apply for an account and supply company network, you need to bring ID cards and Small Business Committee consent. Residents upon application, the power company will be given at the agreed working days to reply and provide free access to program development, and network acceptance and commissioning services.

About the "Roof station" equipment problems, Maanshan power company officials, this is the public to purchase their own building. After this, then contact the power company for a free grid access. Building "roof plant" equipment needed is roughly: solar panels, inverters, wires and so on. In general, the life of a photovoltaic device is theoretically about 20 years, with 10 years warranty. Because different PV product quality gaps, the public should be selected carefully.

Invested 8,000 yuan 6-8 years may return the "Roof station" Cost recovery period is longer

Self-built "roof power inverter station", is cost-effective? With Mr. Wang, who lives overseas Haiming Shi Yuan Maanshan City's first new "Roof Station" as an example. According to the city's power company responsible person, "rooftop power station" costs, mainly using solar power plant electronic board costs. Mr. Wang family "Roof station" installed capacity of 1.8 kilowatts. Mr. Wang is installed with five or six square meters of "roof power station" basis, one kilowatt solar electronic panels covering an area of ​​about 3 square meters, about 6 square meters will need a 2-kilowatt solar electronic board, so that Mr. Wang invested The cost is 8,000 yuan. Currently, Anhui execution price per kilowatt-hour (kWh) 0.436 yuan. Mr. Wang investments "Roof station" is relatively small, a rough estimate up his investment costs have 6-8 years to recover.

Currently, only Mr. Wang Shan region an individual household to establish a "roof power station." Maanshan power company staff said, photovoltaic power generation by solar energy, rain or shine, day and night are not the same amount of electricity, so the early years, residents need to be equipped to deploy a battery charge. And a battery takes two or three million. Today, the grid would mean "Roof station" may no longer need batteries, and greatly reduce the construction cost. However, just from an economic point of view, there is still high cost of solar power, long life cycle cost recovery issues.

Huawei's push UPS high efficiency more reliable

Recently held in chengdu shangri-la hotel "national tour conference 2013 huawei UPS and data center", from the southwest of the government, finance, communications, energy, transportation, electric power industries such as users, as well as the system integrator, etc more than 300 guests attended the event, to share the huawei for UPS and new understanding and interpretation of data center solutions, huawei "reliable, efficient and easy to use, intelligent UPS" the core values and concepts of industry focus.

At the conference of China power industry association, vice director of Wang Jiying, according to the development of the UPS has been centered around the concept of energy conservation and emissions reduction, this is the law of development of the history! High efficiency and energy saving is the inevitable trend that all electronic products, high efficiency and energy saving purpose is to save power, save material, reduce weight, reduce volume and increase reliability.

Traditional Wang Jiying, says there has been a myth is the high efficiency and energy saving and reliability. UPS at high temperature are problematic, according to the law of ray nussbaum, every 10 ° C temperature, equipment life is cut in half. UPS internal heat is mainly composed of rectifier, power inverter with charger , transformer and control circuit. General silicon controlled rectifier accounted for about 3%, transformer power consumption accounted for about 3%, assuming a UPS, its efficiency is 92%, and 100 kw power 8 kw, it is a heat source can not be ignored. Therefore, efficient and lead to higher reliability. Traditional silicon controlled rectifier, especially 6 pulse rectifier has damage to the power grid voltage waveform, reduce the input power factor, conversion efficiency is reduced, can not only improve the reliability, it will reduce the reliability of the equipment. Huawei UPS the PFC - IGBT rectifier technology can improve the conversion efficiency of the rectifier to 98%, and there is no output transformer design using structure, greatly improve the efficiency of the machine, reduce reactive loss caused by the heat effect on the reliability of the whole machine, comprehensively improve the reliability of UPS equipment.

Vice President of China power industry association Wang Jiying do report at the meeting

Huawei since the launch of high efficiency and energy saving, UPS5000 - E, UPS8000 UPS2000 - G - D, in the grand tour meeting huawei also released UPS5000 -a series, so far, huawei has comprehensive coverage 1 kva UPS power range - 800 kva, can be widely meet the demand of application in the field of ICT.

Adhering to the more than 20 years of application experience, huawei UPS for the customer to make reliable, efficient, easy-to-use, intelligent uninterruptible power supply solutions, is committed to helping our clients ensure power supply reliability, reduce the energy consumption and save operational costs for customers, and focus on stable operation of the main business. At present, huawei UPS solutions have been widely worldwide commercial, industry covering telecommunications, finance, network, security, transportation, and many other key  power inverter business areas, for large data center, security system and automation production equipment such as critical loads to provide uninterrupted power supply, focus on the customer for the stable operation of the main business, is committed to safeguard customers efficient and reliable power protection.

Terminals in the high-voltage inverter application

With the development of market economy and automation, Nanjing three Bay Electric, said: In the improvement in the level of intelligent terminals, using high-voltage dc to ac power inverter for speed control on the pump load, not only to improve the process, improve product quality is good, but also energy efficiency and economic operation of equipment requirements of sustainable development is an inevitable trend. Speed ​​control on the pump load for the benefits of many. From the application examples, most of them have achieved good results (some saving up to 30% -40%), significantly reducing the cost of water, the water plant, increased automation, and is conducive to pumps and pipe network Buck Run, reducing leakage, burst pipes, extend equipment life.

    In the high-voltage inverter, in order to solve the multi-level unit in series voltage inverter terminals in the main control system and power unit electrical isolation between the strength and the power unit and the power unit between the electromagnetic interference problems, the paper introduces fiber connection method to achieve long-distance power transmission drives the PWM signal.

    Background

    In metallurgy, chemical, power, municipal water and mining industries widely pump load, the total energy consumption of electrical equipment 40%, electricity at the water plant and even the cost of water accounted for 50%. This is because: one, the equipment in the design, usually left a certain margin; the other hand, changes in working conditions, require different flow pump output.

    High voltage inverter system

    Figure 1 - high frequency diagram

    Unit multi-level series PWM voltage source inverter terminals, using a number of low-voltage PWM inverter power unit in series means to achieve the direct voltage output of the inverter the harmonic pollution, low input current harmonics, input power factor high, do not use the input harmonic filter and power factor compensation device. If the output voltage level to 6kV example (Figure 2), the grid voltage through the secondary side of the multiple of the step-down isolation transformer to the power supply unit, the power unit is a three-phase input and single phase output AC has a cross PWM power inverter structure. The output of the power unit adjacent cascaded together to form a Y-linked structure, to achieve high-voltage transformer inverter output directly supply high voltage motors.

    Figure 2-6kV inverter circuit topology diagram

    Figure 3 - Schematic power unit

    Industrial fiber optic applications

    In the high frequency system, we recognize that part of the control unit cabinet is mainly weak signal, but the whole system working environment is more severe, the transmission distance uncertainty (distant), there exists a variety of high-voltage signals. If you use pure copper wire transfer, you need to face all kinds of interference, boost, buck, big loss, corrosive and other issues, leading to low reliability, practicality low resource waste results. The use of industrial fiber is a good solution to the above problems, it is bound to become part of the optical fiber communication communications major way.

The policy execution, after more than a year into a fixed subsidy

In 2011, using crystalline silicon components demonstration project allowances for 9 yuan/tile, adopting amorphous silicon thin film components of 8 yuan/watt.

Falling behind, along with the grid tie inverter cost, allowances as 7 yuan / 2012 w, then fell to 5.5 yuan/watt.

Actually execute in the process of changing subsidies standards, extremely complex, in Meng Xiangan point of view, this reflects the government's grasp of the market "is not allowed.

Subsidy policy change seriously lagging behind the market, leading to subsidies and sometimes almost "package for investment", the resulting problem is "expenses", or "shoddy", regardless of long running benefit anyway, "fill" investment cost almost all back, back to multiple one year earn money in one year, this solid sincerely for those who want to do distributed photovoltaic industry, is undoubtedly a blow.

More generally, many enterprises, intentionally or not, to delay the construction of the project cycle.

Yang Guoping Long Chi curtain wall engineering co., LTD pure sine wave inverter department manager said, "this is not speculation, is also a kind of trend.

Profit is the nature of enterprise, is the enterprise survival wisdom reasonable use rules.

Enterprises need capital turnover, at the end of the day is saved for my own savings, according to the price, for the country may affect smaller, more influence for enterprise".

May be gradually realized the subsidy policy, the central government began to "fundamental", one-time to devolve subsidies smaller and smaller.

Li Chongwei cites the example of power inverter , was 70%, in the first half of 2012 decreased 35%, 10% in the second half year.

And from the jiangsu and zhejiang in an interview that many project development companies, even in 2009 the first "golden sun" project, until now also didn't take all the remaining 30% subsidy.

This achievement is attributed to two factors: the complete industrial chain and accurate predictions for the whole power inverter

According to reporter understanding, new energy is one of the few domestic chint solar overall solution provider, it can research and development, manufacture and construction of grid tie inverter on all equipment, including pv modules, inverters, power distribution cabinets, etc.

Li Chongwei told reporters: "if pure investment photovoltaic power station, once the market situation is bad, will be a great influence on cash flow, this is a deadly blow to solar photovoltaic enterprise.

Chint new energy thus to provide customers across all products, and photovoltaic power station services business, this is a good way to control the cost and cash flow."

With suntech and d blind expansion, chint group, with nearly 30 years of accumulation, has accurate predictions for the power industry, as a result, it can be ahead of grid connected inverter layout, a sharp change in response to market conditions.

In 2009, the Chinese pv companies relying on overseas markets to earn the profits, and ignore almost blank market, but decided to use its own unique chint new energy resources to occupy the domestic market.

From 2009 to today, chint new energy has built large-scale photovoltaic power station in the western region a total installed capacity of 270 megawatts, ranked fourth in the home, after CLP, guodian, of energy saving and so on three state-owned companies.

The chint power inverter on the roof of a distributed in the eastern part of the installed capacity has reached 123 mw.

In addition, chint new energy in the international market with 150 mw installed capacity of power station.

This both pay attention to the international market, and pay attention to the domestic market of industry layout, chint new energy can spend other photovoltaic enterprises encountered a huge crisis.

Hainan day to be able to:

"Will down-to-earth, pragmatic to do"

In the "hainan province near 20 mw photovoltaic (pv) grid demonstration project" in the control room, a large electronic screen occupied a wall.

From the displayed map of hainan province of electronic screen, reporter can see clearly by the hainan day power co., LTD.

Personally, I think the article's forecast is very accurate

Industry leader SMA  grid tie inverter bought inverse pioneer OK4ALL OKE - Services product platform, and thus developed a micro SunnyBoy240 inverse products.

This product is only in SMA website you can see in the United States, the specific time to market is unknown.

Micro PowerOne also launched in 2011, on the inverse AuroraMicro products.

Micro inverter can significantly improve the efficiency of the system, because each component is equipped with an power inverter , mismatch loss (mismatchloss) between components can be eliminated.

Since the Enphase company in 2008 launched the first commercial product, micro inverter is outside academia began to know, the company relies on its in silicon valley, the advantages of rapid expansion of financing development soon, then several other brands fast-tracking into competition.

Several big mainstream brand first wait and see, also recently started in micro inverse market layout.

But because the price of micro inverse group string dc ac inverter for a few times more, even if the total generating capacity slightly tall, in terms of system cost repay time (paybacktime) also do not have advantage.

Actually micro inverse has a big advantage, for easy installation safety, according to some do indian-born UNSW alumni of pv system design is introduced, the latest photovoltaic installation standards Australia AS5033 eased many installation requirements for micro inverse, due to the lower voltage level at the same time, the installation workers feel more secure.

This may be a key advantage of the technology market development in the future.

And while he was (TransactiononPowerElectronics) chief editor of the proceedings of the IEEE power electronics, the past few years, research of photovoltaic inverter has become a very popular field.

Development of family power inverter

The vast development space

From grid tie inverter development trend both at home and abroad, mainly has the ground station and roof system in both directions.

Ground station is characterized by large scale, but take up the land area is larger.

Roof roof system to residents is given priority to, also have units (such as Google) roof.

Henan, silicon photovoltaic industry, member of expert workstations associate professor pan three bo told reporters that in the early development of both at home and abroad, mainly composed of ground stations.

At that time, high cost of dc ac inverter, mainly for the demonstration engineering and is used in electric power system, power supply new exploration and research.

Now roof development trend based on residents abroad is given priority to, the future may be extended to unit the roof (involves building).

But may be in a carbon tax and relevant influence, more rapid development.

Domestic power plant is given priority to with the ground, a few years ago but grid formalities of trouble, the cost is high.

Now the subsidy way change and the change of the power inverter company attitude, made by small and medium of distributed generation interconnection way faster.

"Family plant" is short for a home solar power system, mainly by the solar panels, solar controller and the battery of three parts.

In a vast, all sorts of renewable energy distribution is differ, small hydropower are mainly distributed in central China, southwest and northwest regions, mostly used to solve the problem of remote area power supply; Remaining heat and pressure, residual air and so on comprehensive utilization of resources are mainly distributed in shanxi, shandong, jiangsu and other central and eastern regions; Biomass is mainly distributed in eastern zhejiang, shandong, jiangsu and other regions; Distributed wind power mainly distributed in the "three norths" and southeast coastal; Gas installations, subject to the limit of the fuel price and the influence of the core equipment imports, did not form scale development trend; Photovoltaic power generation and distributed mainly distributed in northwest and north China region.

Our country 630 kw large power inverter comprehensive test platform construction to complete

National power inverter quality inspection center (CPVT) 630 kw photovoltaic inverter testing platform of the project's first phase (laboratory) project has been completed.

The test platform is equipped with the United States Ametek programmable ac power supply (90 kw (9), the Swiss Rio PuKang dc analog power supply (32 kw (32), Germany, Taiwan ling group of RLC load Albatross - Projects GmbH and half in a leading domestic, international first-class high-end detection means such as,.

Photovoltaic quality inspection center, national (CPVT) 630 kw photovoltaic inverter testing platform smooth marked the completion of the national photovoltaic quality inspection center (CPVT) has completely with the ability of comprehensive testing large photovoltaic inverter and fill in several blanks in the field of inverter product testing.

The platform can completely satisfy the covering of IEC, EN, UL, VDE, AS, JET, and domestic related standard test requirements.

The platform can meet the low voltage at the same time through (" zero crossing "), the MPPT efficiency of dynamic and static tracking, multimachine parallel island, EMC and other special test project and European medium voltage directive (BDEW) certification test requirements, great convenience for our grid tie inverter production enterprises of research and development, verification and certification test requirements.

CPVT photovoltaic products as the approval letter from the general administration of quality supervision, inspection and quarantine of the statutory inspection agency, responsible for supervision and spot checks the photovoltaic products; CPVT as international certification testing service platform at the same time, can provide for the general enterprise, VDE, CSA, CQC, TUV, SGS, BV, SAA, JET, such as the international and domestic certification test "one-stop" service.

I provide Japan already dragon power supply company of a batch of YL solar grid inverter has been successfully delivery, marks our in a solid step on the road toward internationalization.

Over this system power inverter "spontaneous for private use

Electricity online" mode, the power inverter absorb solar energy into direct current, then through the inverter to convert alternating current (ac), an alternating current through the wires connected to the meter measuring photovoltaic power generation and power users, respectively, a user via a computer link to special operating software, you can see the corresponding data.

In on the roof of the solar water heater, photovoltaic panels of the house of Mr. Zhao is particularly conspicuous, Mr Zhao, the pv systems with a total investment of 30000 yuan, mainly for the installation design, free access to grid power company.

Tongling belong to the state three types of illumination area, according to tongling illumination time is about 1500 hours per year, a year come down, the  power converter system capacity of more than 4000 degrees, can be reduced at least about 3000 kg of carbon dioxide emissions.

Small test pass environmental positive energy

Mr. Zhao's work has nothing to do with the energy industry, but he want try on their own, their own benefit at the same time do for environmental protection efforts, to drive more people to use clean energy around you.

According to zhao peng, in Europe, Australia, family use photovoltaic power generation, especially used on villa has been quite common.

Last October, the national PV inverter has released on the distributed grid-connected photovoltaic (pv) service work opinion ", scattered distributed photovoltaic connected to low voltage distribution network, allow the surplus electricity to the Internet, according to the national policy for full purchase surplus power grid enterprises.

The good news to let laozhao stirring. "This is equivalent to civil grid-connected photovoltaic (pv) opened the door, I just want to do a small test at home."

Lao zhao first consulting many technology companies and tongling power supply company.

Because is the first door, tongling tongling power supply company has opened up a green channel, tongling power supply company accepts the Mr. Zhao's application in early April, the second day is the door to check, is responsible for the installation of the new company to submit the construction scheme, and assign a quality approach.

Shenzhen city bureau of statistics, according to the statistical bulletin power inverter

Respectively, 3894 yuan/month, 4205 yuan/month and 4640 yuan/month. Can be made, according the  power inverter situation reflects the company's future wages remain large room to improve, and continuously improve staff wages will cost to the company bring certain pressure, if the competitiveness of the company's main business in the future can't keep continued ascension, possible because can't afford to continue to improve employee welfare treatment and employment stability and sustainability of the risk.

In recent days I P O financial verification work conference, the CSRC according to the person familiar with the matter, if there is a lower staff salaries, especially bigger influence on the labor-intensive enterprise, in front of the public for the big picture compression cost, perfect welfare must focus on after listed.

In certain period by reducing staff salary, sine wave inverter , the practice of making profit increased, past regulators also notice, will concern and questions about this in the review. Regulators, however, is not mandatory to disclosed in the prospectus of listed companies pay compares with the same industry.

"If a listing is a raise, profits will decline, is likely to face performance." The shenzhen securities firms, according to which regulatory focus.

CSRC relevant controller introduces, "verification" need to examine whether listed companies exist lower staff salaries, the bigger influence on the labor-intensive enterprises in particular, dc ac inverter some companies in front of the public to protect profit compression cost, improve benefits after listed.

People think that the investment Banks, as a high-tech enterprise, can stand g level is far lower than the local average wage, average wage is likely due to higher profits and deliberately in front of the listed cost lower, and through the way of "off-balance-sheet" operation give employee compensation, and after successful listed may greatly improve employee benefits, and have a big impact on profits.

European film power inverter connected to the grid is analysed

Templin Belectric has power inverter project developers will be located in Germany, Europe's biggest film solar photovoltaic power grid.

The plant installed capacity is 128 mw, enabled the manufacturers First Solar manufacturing more than 1.5 million film components and SMA's 114 central inverter.

The plant was built in the Russian military airport before Gross Dolln, will mainly supply power for the German capital Berlin.

BELECTRIC CEO Bernhard Beck (Bernhard Beck) said: "distributed solar power plants will be in Germany's electricity market structure plays a decisive role in the future."

"Such power generating solar power is the most economical way. At present, our cost has almost reached the onshore power inverter with charger levels."

First Solar European business development director Stephen alesina (Stefan Degener) added: "the project highlighted the level of our technique in the field of Solar power plants. Big ground installation of photovoltaic power station not only helps to provide stable power supply, also ensure that the power supply at stable prices for a long time."

U.S. solar stocks on April 24 in the democratic and republican senators jointly launched renewable energy present sharp gains under the stimulus of corporate tax bill. U.S. solar cell maker, SunPower corp. gained 10.45%, $12.26, at closing high since March 20. Cadmium telluride thin film Solar cell module manufacturers First Solar, Inc., surged 11.82%, $45.11, hit a closing high since February 9, 2012. Jinkosolar (Jinkosolar Holding Co.) have also jumped 15.34%, $6.54, hit a closing high since March 14.

Platts, and other media reports, Delaware democrat senator Chris Coons, the democratic senator Debbie Stabenow of Michigan, republican senator Lisa Murkowski of Alaska, grid tie power inverter and Kansas republican senator Jerry Moran, 24, renewable energy enterprise tax bill proposed joint allows solar energy, wind power, etc. Companies adhere to the "Limited liability Partnership (Master Limited Partnership, MLP)" architecture.

MLP system allows operators in the pattern of the joint stock company when raise, do not need to be class corporate tax, shareholder dividends income tax rates, two layer only need to pay individual income tax rate (partners). The tax law is currently only applicable to oil, natural gas and the related pipe manufacturers.

Yesterday, the power inverter modern express reporter saw in their laboratory

This device looks very simple, is made up of 200 w power inverter , control box, charging pile, electrical terminals of four parts, through the cable connection between each other, the control box contains a storage battery, controller, inverter, voltage display instrument, universal socket, protection device etc.

Xiao li told reporters that the device frame carport installed at the top, can run. Normal light conditions, daily output for two electric bicycle charging for 4 hours, the charge for about 18 km to electric bicycle ride. "Understanding after the conversion, you can according to the carport car how much quantity, to determine how many watts of solar panels installed".

Community willing to trial, the students will have contribution to the research results

However, nanjing don't have good weather every day. In continuous rainy weather, electric PV inverter are charging problem how to solve? To this, Mr. Li and his "army environmental interest groups" in the camps also have countermeasures.

In the laboratory, the reporter also saw a windmill equipment. Xiao li told reporters that it was a small wind power generation equipment, their preparation and combination use of solar power generation equipment, installed in a carport together on top, so that "scenery complementary".

This "scenery complementary power generation equipment is not as your imagination. Mr. Li and his interest group spent less than 10000 yuan, is developed.

"It costs 10000 yuan, in addition to materials, tools, also includes the test, the processing fee." Xiao li said, really put into use, the cost must be less than 10000 yuan.

Recently, xiao li and interest group of the students are ready to install the power generation equipment to the school of carport, demonstration run, wind turbine inverter and will according to the using effect, make continuous improvement.

The "scenery complementary power generation equipment can be widely available," xiao li did not think too much about this. He tells a reporter, if there is a district of nanjing is willing to try, they can take their own inventions, no reservations. Now, however, they consider their own safety equipment, to prevent theft problem, in addition to the safety of the trial process.

The proposal has received at least one oil and gas support organization. American petroleum institute (API) President Jack Gerard on April 23, at bloomberg new energy finance summit, said the agency support in congress, as this will assist in wind power and solar energy industry to achieve the target of independent operation, no longer need everywhere rely on the federal government's subsidy.

Who created the dangerous chemicals in domestic characteristics classification and grading and power inverter

Characteristics of the pattern recognition power converter and the method research;

Two test methods are the UN ecosoc dangerous chemicals expert committee approval to become an international authoritative method, listed in the "international rules" danger;

Research results widely used throughout the country,power converter for the implementation of the national dangerous chemicals regulations and the establishment of the legal inspection of import and export of chemicals in China system provides important technical support.

3. The system is put forward ideas and inspection and quarantine inspection and quarantine subject dynamics model of the development of the study, published "series of power converter safety and inspection and quarantine safety book".

4. 2 items successively won the national scientific and power inverter  progress second prize, 5 provincial awards first prize, in the domestic and foreign authoritative scientific journals published more than 100 (including the IF > 9, 6),power inverter to the persons involved 48 national patents, software Copyrights for 3 times. 

128 items of formulating national standard, published monographs 8 (including English book 1).

5. Twice won the provincial "power inverter", led the team won the ministry of science and power inverter of "11th five-year plan state science and power inverter award for the best team in implementing the plan".

GuiWeiHua committed to complex non-ferrous metallurgical process control theory and power inverter with charger research, presided over by the national natural science fund subject of major projects, key projects, 863, 973, national science and technology research, national high-tech industrialization and factory school 46 major scientific research projects of cooperation.

Proposed complex non-ferrous metallurgical process intelligent optimization control theory and methods, break through the large high strength aluminum alloy component preparation the key technology of major equipment automation, developed a series of intelligent optimization control system, and successfully applied in copper, aluminum, lead, zinc and other major non-ferrous metal production process, effective.

To improve automation level of nonferrous metallurgy power inverter with charger in China has made a great contribution to the, promoting new industrialization process. 

Major science and power inverter with charger achievements and contributions include:

Change especially electrician high grid tie inverter successfully entering the Indian market

Change especially grid tie inverter companies signed with India PT company four TBEA - GC - 500 KTL grid tie inverter procurement contract, change especially electrician high grid tie inverter successfully entering the Indian market.

TBEA - GC - 500 type KTL grid tie inverter has been through the "golden sun", such as TUV, ENEL, domestic and foreign many authoritative attestation, and in September 2012 passed the low voltage through its field tests, the reliability, conversion efficiency, power quality and other technical indicators have reached the international advanced level, products are now widely used in domestic and foreign markets.

The project is located in the Indian state of rajasthan, belong to India's national pv projects,grid tie inverter is expected to realize installation at the end of April, 2013, will play a good demonstration role.

The entering the Indian market is change especially electrician power inverter company, following the November 2012 in India achieving successful after the interconnection of 50 kw power inverter and a breakthrough, at the same time become the domestic power inverter market take the lead to achieve the high power inverter in India successfully using inverter supplier.

Shipments increased by Asia, in 2012 the global pv market in the world buck the trend under the condition of the power inverter recession, increased by 5%, to $7 billion for the first time, the revenue from $6.7 billion to $7.1 billion in 2011.

Although pv capacity growth is slowing, price is lower, power inverter sales or rose, under the market environment of sluggish global solar power inverter is it has been a success.

 Asia's strong growth in the fourth quarter promotes the growth of solar power inverter business, this is offset by the emergence of Europe, Africa and the Middle East's 20% drop in succession.

This helped 2012 shipments increased from 27 gw in 2011 to 32 gw in 2012.

Revenue income due to the fierce price competition and to low-cost market such as China, India, eastern Europe and subdued.

These areas very favour those large solar power inverter at lower prices, resulting in the average price of inverter has fallen dramatically, in addition, it also led to the sales growth to slow in 2012.

First of all, realize the spontaneous for Power inverter private use

Power inverter  side and electrical terminal almost zero distance, greatly reduce the cost of electricity transmission and loss; Second, does not affect the construction basic functions, such as daylighting also can have the effect of heat insulation in summer; Third, the construction cost is low, the installation is very simple, just like air conditioning separate-bodied air-conditioners, and easy popularization; Fourth, the power inverter can be brought into a huge amount of consumer market, completely can solve China's power inverter manufacturing serious overcapacity problem; Fifth, directly aimed at mass consumer B2C sales mode, can help enterprises to form a good cycle of cash flow, and is expected to promote the benign development of enterprises and industries. 

And the pressure is so much smaller government subsidies, need to do is just to introduce appropriate encouragement policy and market regulation, and put up a few money to subsidies, the broad market of power inverter is likely to be activated. 

24-year-old said, this is the most economical mode of renewable energy subsidies.

"In suzhou area, per kilowatt power converter system of annual output is about 1200-1200 degrees, and project investment need about 8000 yuan or so, if the price is 1 RMB, even less than a decade to recover the investment.

If the country were carried out on the balcony generating ChuZhuang some subsidy, will be installed to reduce your cost, there must be many people willing to do."

24-year-old calculation shows, if every subsidies of 2000 yuan, ten million of the balcony installation quantity probably only need 20 billion yuan subsidy amount, but it is a nearly equivalent to the three gorges power plant power converter market. 

Through investigation and research, 24-year-old think, according to the situation of domestic construction, use the balcony outside facade installation of power converter system, may be a more realistic power converter application mode. 

"As long as through a share of subsidies to mobilize people's enthusiasm, installation of this market will be effectively inspire enthusiasm, it is entirely possible that there would be no need for government subsidies in a year or two."

He grid tie inverter promotion prospects are optimistic to the balcony.

German grid tie inverter management is the secret of success 

Years as united, 24-year-old experience over the years for yourself is: the end of the restless.

This kind of uneasy cent, comes from the heart of a confused.

During studying in Germany, he has been thinking about a problem, the only more than 8000 people, covers an area of only the size of China's henan province country, why has created more than 1.3 billion population,grid tie inverter land area is larger, the resources is much more rich China more GDP? 

Application of power inverter in power system

Power electronic technology is one of the emerging electronic technology, is widely applied in the field of power inverter, and with the research and development of frequency conversion technology, the development of power inverter has a strong guarantee, at present, the role of electronic power technology mainly in power inverter, transmission, distribution and so on each link. See below power inverter in using the basic situation of each part. 

The use of in the power inverter link 

Power system of power inverter link involves generating set a variety of equipment, the application of power electronic technology to improve the running characteristics of the equipment for the main purpose. 

(a) large static excitation control of generators.

Static excitation adopts thyristor rectifying self shunt excitation method, with simple structure, high reliability and low cost advantages, are widely used in electric power systems around the world.

Due to eliminating the inertia exciter the intermediate links, thus has its peculiar velocity adjustment, gives advanced control laws give full play to the role and the advantage of good control effect. 

(2) hydraulic, the variable speed constant frequency wind grid tie inverter excitation.

Hydroelectric power effective power depends on the pressure head and flow rate, when the change range of water head is big (especially for pumped storage units), units of the best transfer rate also changes. 

The effective power of the grid tie inverter and wind speed of the direct ratio three times, the windmill to capture the maximum wind speed varies with wind speed change. For maximum effective grid tie inverter, can make the speed change operation, by adjusting the frequency of the rotor excitation current, with the rotor speed after stacking the output frequency of the stator frequency constant. 

The application of the core technology is the variable frequency grid tie inverter. 

(3) power plant fan, water pump frequency control of motor speed.

Power plant auxiliary power rate averaged 8%, fan, water pump power consumption accounts for about 65% of the total grid tie inverter of thermal power equipment, and the low operating efficiency. 

Using low voltage or high voltage inverter, the effect of fan, water pump frequency control, can achieve the goal of energy saving.

Low voltage frequency solar power inverter has very mature, has many manufacturers at home and abroad, and a complete series of products. 

(4) solar power inverter control system. 

The development and utilization of endless clean new energy - solar power inverter, is the future energy structure adjustment is an important strategic measure. 

High power solar power inverter, both independent system and grid tie inverter system, usually need to be direct current into alternating current from solar power inverter array, so has the most power tracing function of inverter become the core of the system. 

Sunshine program for Japan in 3 ~ 4 kw in grid-connected power generation system is given priority to, sending to the countryside on the implementation of engineering in our country is in the majority with 10 ~ 15 kw of independent system, the large system of Siemens in California (7.2 MW) solar power plants, etc. 

Suzhou silurian lane community distributed power inverter was built

Suzhou ze the new energy technology co., LTD. A number of professional and technical personnel arrived in suzhou city, jiangsu province CangLangOu towers silurian street lane community, for power inverter  installation and debugging work of distributed grid-connected power inverter demonstration project. So-called refers to the number of small distributed power inverter system (grid) rational distribution of power modu.

The silurian lane demonstration project - the core components in the system high frequency isolation type power inverter by the jersey and the new energy company exclusive development and technology at the international advanced level. 

Since October 2012, the national power inverter for policy, has brought new opportunities for the development of distributed power inverter, the local governments at all levels, under the push of power inverter residential project is developing rapidly. 

Compared with conventional energy generation, distributed solar inverter has many advantages: 

A, make full use of the dispersion energy, improve energy efficiency, at the same time, due to the independent among solar inverter in power systems, the user can self control, to prevent large-scale blackouts accidents, high safety and reliability; 

Second, little pollution, environmental protection benefit is prominent, the distributed solar inverter system in the process of running without noise, won't cause pollution to the surrounding environment; 

Three, distributed generation, transmission and distribution losses is low, do not need to set up sub-station, which can reduce the cost of transmission and distribution, and installation costs.

Distributed solar inverter system can give full play to the characteristics of high output power during the day, at ease electric power tense at the same time, the excess electricity feedback back to the main grid tie inverter can also bring economic benefits. The successful application of silurian lane community demonstration projects will bring the use of clean energy to local residents and enterprises a new choice, for the development of distributed grid-connected power generation system has made the positive exploration. 

By shaanxi grid tie inverter company independent design of the construction of the xi 'an semiconductor industrial park on February 25, 1 mw grid tie inverter building integrated project completed and put into operation, as of the end of march is generating more than seventeen thousand degrees. 

The project for the national ministry of grid tie inverter building demonstration projects, won the national financial support. Project is located in xi 'an kam road 125, construction began on December 16th. Total project for 1 mw capacity, using 5265 pieces of monocrystalline silicon solar cell components and 59 of small high efficiency inverter, grid tie inverter, by direct current (dc) component via the inverter into 0.4 kv ac use directly incorporated into the user side. 

, after the completion of the project is expected to produce about 1 million degrees, and the life period of total generating capacity of about 25 million degrees, save BiaoMei about 8750 tons, about 6800 tons of dust to reduce carbon emissions, of about 25000 tons of carbon dioxide, and nearly 750 tons of sulfur dioxide, nitrogen oxides of about 375 tons.

Power inverter problems in residential construction

(1) due to the sunlight to heat by the ground area day and night, season, and the influence of the weather cloudy sex, discontinuous and unstable coupled with solar inverter system daily operation and, maintenance, there are also some of change garments according to the problem.

To a certain influence on widely promotion and application of solar inverter. 

(2) low winter temperatures solar inverter and anti-freezing problem of pipeline system, in the north cold region of solar inverter system is only used in spring, summer, autumn three season. 

(3) in the city, because of land for construction is more and more nervous, solar power inverter  so more and more high-rise buildings, for high-rise residential due to the limitation the area of the roof, basically could not laying down enough solar power inverter. 

(4) is installed on the roof of the solar power inverter there is a connection pipe length, large heat loss, the pipe defects such as cold water waste.

On the roof inspection and maintenance more difficult; Some for the installation of solar power inverter, also can destroy the construction of waterproof layer, leakage phenomenon; Some solar power inverter layout is chaos, do not coordinate with construction, building image and affect various eyesores. 

(5) because of the different geographical position, will be different degree of impact of different water quality on the power inverter  system fouling phenomenon.
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(6) there is the power inverter daylighting, the special requirements of appearance, the installation direction, the respect such as installation location limitation, it is difficult to merge with city landscape, at the same time, there is resistance to the typhoon, lightning protection, such as snow, install security flaws. 

For how to eliminate the power inverter application in building engineering problems, how to building and the perfect combination of power inverter, promote the application of solar energy in buildings, we have been thinking of a problem. 

Radical technology "power inverter" public music party

"Lights out", it is every year, the theme of the unit is the " grid tie inverter " the launch of the world wide fund for nature advocated the protection of ecological environment.

Carried out science and technology as a grid tie inverter enterprise has social responsibility, to unplugged music public welfare party in the form of a positive response to the "grid tie inverter" activities,grid tie inverter aims to use music pass environmental protection concept, power inverter let each participant to use action to practice environmental protection.

The "rest in xiamen" unplugged music charity party,power inverter concert by the children of the xiamen lotus dragon "small forest hand" and "I love the bird paradise" two environmental protection theme song open,power inverter naive children light spirit expressed in clean,power inverter no pollution of the world.

Then, Easy color art studio of the children with their own design and production of green lantern lit up the whole, these lanterns are made by waste material, power converter is both creative and environmental protection.

Finally, led by well-known musicians Huang Bo < cornerstone music > for viewers in the "Imagine" and "I Smile" two soul songs,power converter let people to open the heart, far from impetuous, to lay down their desire, pay close attention to human living environment, with their own action to practice environmental protection.

Resident may observe a short hour, people's hearts,power converter continue as numerous ecological environmental protection for one hour.

Radical technology (xiamen) co., LTD., vice President of wang2 xiao3 ming2 said in an interview: the tenet of "earth hour" activities and radical technology promotion and popularization of clean energy applications in the world "the enterprise mission is.

Carried out science and technology is committed to promote low carbon life and the concept of sustainable development,power converter call everyone together hand in hand, to clean energy, take concrete actions to create the future.