Jiangsu megavolt love line in energy saving twin well beach

photovoltaic 10 mw project is expected to the end of the month to realize combined to the grid tie inverter

Jiangsu Zhao volts love cable New Energy Co., Ltd. (hereinafter referred to as the "trillionvolts love cable") recently signed with the energy-saving contracts, 10 MW of power projects two 50-megawatt project in energy-saving Luanjingtan PV gridengineeringproducts. The construction of this project will play a positive role in optimizing theeconomic structure of the demonstration area, promote scientific development.

The photovoltaic project in energy-saving Luanjingtan two projects to invest 10 billion yuan, is a large desert photovoltaic power stations. Megavoltage love cable company for the project NSG series 500KW large photovoltaic grid-connected inverter DC distributioncabinets and other related accessories, the products of the project be delivered,estimates can be completed by the end of September this year installation and grid.500KW high  power inverter the megavoltage Ai Suoti for has passed the certification ofChina's "Golden Sun" the LVRT low voltage through the test and international authorityTUV certification, product reliability, conversion efficiency, power quality technical indicators have reached international advanced level.

Inverter as a leading technology manufacturers, of megavoltage love Soenen successfulin two 10-megawatt photovoltaic project in energy-saving Luanjingtan projects, by virtue of its high degree of reliability of the product, after sales service of professional again to wina positive portrayal of the market. The megavoltage love cable companies on their ownquality and efficient technology R & D capabilities, product quality, service capabilities,and actively cooperate with the construction of the project,solar panel  to build a classicdesert power station project.

Modern high-frequency switching power supply to improve the input power factor

A passive filter

Passive filter is a filter inductor in series between the rectifier and the capacitor resonator filters,solar panel or access the mains input side. Its main advantages are: the circuit is simple, low cost, high reliability, EMI. The main disadvantages are: the volume weight is large, it is difficult to obtain the input power factor close to 1 (typically between 0.8 and 0.9 can be achieved), related to the operating performance and frequency, load changes, and the input voltage changes, the inductance and capacitance between the charge, the discharge current is large and so on.

2 Active Power Filter

Active power filter APF (Active P. Wer Filter) is the use of power electronic inverter and feedback technology, real-time measurement of the voltage and current waveforms of the nonlinear load, to provide the required load current harmonics to the electricity grid, Input current to compensate for the power inverter  grid, so close to a sine wave, reducing the electricity grid input current THD, and improve the quality of the mains power grid. APE power generally.

3 Active Power Factor Correction

Rectifier of Zan and load of indirect PFC converter (both DC / DC converter), the application of current feedback technology, the end of the input current iin waveform tracking sinusoidal AC input voltage waveform, iin nearly sinusoidal. So that the input current THD <5%, while the input power factor can be increased to 0.99 or higher. This technology applied to active power devices and feedback technology, so that the input current waveform is nearly sine wave from the narrow pulses status changes to improve the input power factor, it is called Active Power Factor Correction (APFC) active input current waveform shaping technology. The APFC power generally small, as AC / DC switching power supply, inverter, AC uninterruptible power supply (UPS), fluorescent lamp electronic ballasts and other input terminal of the power factor correction.

Its main advantages are: high input power factor, such as 0.97 to 0.99, even close to 1; city power grid tie inverter input current THD; wide input voltage range ( as 90 ~ 264 V AC) and broadband; small size, light weight; adjust the input current waveform, the current negative feedback, the output voltage can be kept substantially constant. The main disadvantages are: complex circuit, MTBF decline; costs (such as AC / DC switching power supply plus top-level APFC, will make the cost of a 15% increase); EMI; efficiency decreased slightly.

Propped up a business, the an the Corporate Achievement era business cards.

In the early 21st century, Lucky reached a heyday. Today, As Lucky publicity director of the Center, the Communist Youth League secretary Zhu Haihe memories, Lucky put into automatic packaging production line to produce color film 300,000 a day in 2001,grid tie inverter together with other two production lines of more than 50 million. Color film a products accounted for 22.6% of the Lucky Group's main income, production accounts for about 30% of the national market. "Zhu sigh Lucky difficult latecomer.

"Whole industry misjudgment"

That is the farm decide the fate of the controversy, but had made an error in judgment. Wrong not just Lucky, there are more powerful Kodak and Fuji.

In September 2000, the international image photosensitive technical meeting held in Canada. A focus of debate at the meeting is the impact of digital technology on traditional photographic materials technology, its trends, the process to make judgments, that color film can go very far? Kodak, Fuji, Lucky together again, the then Wang Yingru as Lucky technical director, attended the meeting.

"Forecast, there are 10 to 15 years time." 12 years later, the same one in September, now Renle Kai, vice president Wang Yingru recalled that controversy admits, have made "global misjudgment. In her view, along with the rise of digital technology, color film inevitably impact, but I did not expect so soon. Such as razors,solar panel  traditional manual razor, with the rise of the electric shaver, both the market and a manual razor price is much better than the electric razor. Color film should be no different.

Zhu Haihe seems, then color film gross profit of 50%, to provide financial support for the fight against digital technology, but also to provide adequate time for business transformation.

Embodied in the body of Liu Baojun, but how much some people do not have the heart. Around 2002, his workshop, color film's production began to decline, do not want to see the scene, truly, The sound of the constant reports of "color films lose money, let him sleepless nights. Obviously miserable, and still believe, that's just a hurdle. Think of these now, his face unconsciously passing burst of desolation, "after all, is emotional."

In 2002, his colleagues about minus 200 are gradually divert back to digital, photographic paper, solar film workshop,power inverter  playing ten years of dealings with the old production line also disappeared. Has not yet recovered, and the second shunt followed, the staff becomes 100.

In 1989, Liu Baojun stepped into the door of the Lucky finishing packaging workshop an ordinary worker

At this point, more than 100 of its workers in the workshop, then the camera still fashionable era, by virtue of their color film, gusto. Two years later,power inverter  the shop workers to more than 400 people, the to become Lucky largest shop. He also went to the position of team leader, led more than 10 people, busy in the first-line color film production.

Lucky to achieve the civilian rapid adjustment of the photographic material, from film to form their own brand, Lucky has become the pride of a generation.

"Hard-won trademarks"

Fact, including Lucky the full taste of China Trademark behind filled with elements of comedy.

In 1984, Lucky plans to enable "happiness" brand, but the registration of the Trade and Industry Bureau, was Lucky dealer registered. "Happiness" English "lucky" has also been registered in some foreign countries, Lucky plans to buy up the trademark of "happiness", but the price of up to 200 million -300 million, Lucky some hesitation.

While the impasse in negotiations, the Trade and Industry Bureau trademarks experts recommend "lucky" transliteration "Lucky", this way, to solve the dilemma of trademarks, but also the trademark more catchy, easy to be accepted by the people. "Lucky" to be born.

For Liu Baojun, it is not just a period of history, solar panel more Lucky generation or generations of youth.

"Produce more than 200 million rolls a month (a), more than 300 million rolls of (a), more than 400 million rolls of (a), up to the time reached 600 million rolls (a)." September 12, he was still a long paragraph identity stood on the proof of the workshop, the face can not hide excitement: a year in the last quarter, "make a big fourth quarter," the fiery slogans people particularly pushy. Enterprise spend as much as 500 million investment "Outlaws of the Marsh" do publicity vigor, so that other companies can hold a candle.

Lucky, am excited not only Liu; proud of this, not just Lucky people also.

Four classes of personnel shifts, 24-hour operation, the implementation of human wave tactics "in 1997, Zhu Haihe enter Lucky allocated organs, but in tight supply, office colleagues always appear together in finishing packaging workshop, fighting side by side with Liu Baojun.

The Lucky Film listed on the Shanghai Stock Exchange in February 1998, to become China's only listed company of a photosensitive material industry. This time, Lucky has been abroad, Kodak, Fuji and said the Big Three, their logo all over the country, the overpack yellow, green and red, respectively, become their symbol, when Kodak and Fuji roll priced at around $ 20 Lucky price to keep a roll of 12 yuan or so, so Kodak, Fuji in the Chinese market was forced to take a low-cost strategy, red, yellow, green "battle potential with the fire,grid tie inverter the interpretation of the more tragic Business Edition "Romance of the Three Kingdoms." The, Lucky undoubtedly become the pride of the Chinese people of that era.

White LED implementations. Currently

GaN-based LED to white: Blu-ray LED + yellow phosphor, tri-color LED synthetic white, violet LED + tri-color phosphor ways. The technical approach is the most common form white light blue LED chip and Blu-ray excited phosphors effectively together to form the white LED.LED radiation peak around 470 nm blue light,power inverter  while some blue excitation phosphors emit peak around 570 nm yellow green . Blu-ray and excite phosphors produced yellow green mixed with another part of the transmission Y l O: Ce white. Phosphor currently used mostly for the rare earth-activated aluminates of Y L O: Ce (YAG), when the blue light excitation it emitted yellow green light, so called yellow-green phosphor. The method is luminous, high luminous efficiency, simple preparation, process maturity. But change color with the angle. Light consistency, and the phosphor LED life is also inconsistent, when asked the passage of time, the color rendering index and color temperature will change, affecting the luminous quality of the light source. Red, green, and blue LED chip or three primary colors LED tube mixed to achieve white. The former is a three-chip type, the latter three light-emitting tube assembly type. Red, green and blue LED is packaged in a tube, light efficiency up to 20 lm / W luminous efficiency, color is good [31 However, the inadequacies of synthetic white LED drive circuit is more complex. Three-chip-type primary colors mixed higher costs and inconsistent due to the red, green and blue LED light decay characteristics, with the increasing use of time, the mixing ratio of the three-color will change. Color rendering index will change to reflect ultraviolet light or UV LED excitation trichromatic phosphor to produce white light. With this approach easier to obtain consistent white color, solar panel because color is only determined by the ratio of phosphor, in addition, can also get a very high color rendering index. But the biggest difficulty lies in how to obtain high conversion efficiency of the three-color phosphor, especially efficient red phosphor. And prevent UV leak is also very important.
Accompanied the rapid expansion of China's rapid economic development and population size, resulting in energy consumption is increasing, the development of the city followed by high energy consumption, energy supply and demand have become increasingly prominent, energy shortages will seriously hinder the future development of the city . Semiconductor lighting source is a huge market potential for development of the industry. As technology advances. Semiconductor lighting source applications will rapidly expand. In the next 5-10 years, it will become the main force in the lighting industry. It will change people's understanding of lighting. Development the individualized lighting concept, no doubt a revolution in the lighting field. At the same time. We have to scientific analysis, calm face the semiconductor lighting brings historic opportunity to formulate scientific development plan, grid tie inverter the development of semiconductor lighting health.

LED lighting principle and application of energy-saving

Generation of LED lighting in the lighting field, the significance of the milestone. With the contemporary world's major energy resources of the world's growing demand for energy consumption, petroleum, natural gas, coal storage capacity is gradually reduced in accordance with the speed of mining, oil and natural gas, respectively, only 40 years and 60 years of mineable reserves. Seeking the use of new energy and renewable energy, the development of energy-efficient technologies, by universal attention worldwide. Solar photovoltaic LED lighting is a typical application of new energy and energy-saving technologies. Solar photovoltaic conversion of solar energy in nature for the electrical energy supplied to the LED light source. Due to the low voltage of the LED light source, energy-saving and long-lasting features, solar LED lighting systems applications will be able to achieve high energy efficiency, reliability and practical value. Therefore, solar photovoltaic lighting system control technology by the attention.
Principle of generation of energy-saving LED lights
Of solar photovoltaic LED lighting systems solar photovoltaic energy efficient LED lighting systems including solar batteries, DC-DC converter, the maximum power point tracking MPPT fMaximum power point tracking) control, store electrical energy storage battery and LED lighting control, LED light source and other parts.
Solar photovoltaic lighting system works: sunlight periods, the solar array will be collected solar energy into electrical energy; Solar Photovoltaic Maximum Power Tracking (MPPT) under the control of the control system, the electrical energy stored in the battery group; LED lighting systems require electricity supply, the voltage and current to the LED light source to provide a safe and efficient. Energy efficient LED lighting systems work, to provide a clean environment for the people working and living green lighting.
Solar photovoltaic solar photovoltaic cell power generation is one of the main ways of using solar energy.
The power inverter generation principle of the solar photovoltaic cell is light-voltaic effect for crystalline silicon solar cells, a typical value is of the open-circuit voltage 0.5 0.6 V, the electron-hole pairs generated by the light in the interface layer more, the greater the resulting current. More absorb the light energy of the interface layer formed in the same manner as the current is greater. Application and research of the solar batteries are mainly silicon solar cells, compound semiconductor cell, and a dye-sensitized solar cell. Silicon solar cells is the mainstream of solar photovoltaic cells, silicon solar cells with the highest photoelectric conversion efficiency of monocrystalline silicon solar cells, the laboratory conversion efficiency of more than 24% of industrial-scale production of monocrystalline silicon solar cell efficiency of 18% or more. Thin film solar cells in recent years has been a great development, polysilicon} crystalline silicon / microcrystalline silicon thin film solar cells and other new types of solar cells also scale industrialization, the highest conversion efficiency of more than 16%. In recent years, of CIS, CIGS thin-film solar battery, GaAs solar cells and other compound semiconductor solar cell has also been made practical progress. The dye-sensitized TiO solar cell research has also made notable achievements.
Exists between the non-linearity, and variability in the output voltage and current of the solar cell. There is a maximum 'power output point, and the voltage corresponding to the maximum power point of one and the current in a particular environment. When the environment changes, the output characteristic curve of the solar panel  also changes. The characteristic curve of the output voltage and output current of the solar cell of Figure 2 in order to get as much power from the solar cell, the maximum power point tracking of the solar cell. The common method of maximum power point tracking control constant voltage tracking method, perturbation and observation method, incremental conductance method, fuzzy logic control method, the method of load current / voltage method entire LED current constant current driver and constant current driver . According to the volt-ampere characteristics of the LED, the the LE D forward pass District tiny voltage fluctuations can cause great changes of the current constant current drive scheme is to be elected.
LED lighting artistic performance
LED light-emitting principle. LED Ⅲ-V compound, such as GaAs (gallium arsenide), GaAsP (gallium arsenide phosphide) AlGaAs (aluminum gallium arsenide) semiconductor is made at its core is a PN junction, so it has a general PN junction The volt-ampere characteristic, that is, the forward pass, reverse-blocking breakdown characteristics. When the P type semiconductor and N-type semiconductor combined, since the carrier concentration at the interface exists difference. Thus, the electron and the hole will be from a high concentration area to a low-concentration region diffusion. The P zone on one side lose the hole remaining negative ions can not move, the the N region side lose electrons and positive ions leave can not move. These charged particles can not move is the space charge. The space charge is concentrated in the vicinity of the interface of the P and N regions, the formation of a space charge region of a very thin, grid tie inverter is a PN junction. When a positive voltage to the P-N junction. Changed the dynamic equilibrium of the P-N junction. When the composite of the minority carrier injection (minority) and majority carrier (multi-sub), put the excess energy is released in the form of light, which converts electrical energy directly into light. PN junction reverse voltage, minority carriers (minority) injection is difficult, it is not light.

In Shangluo: biogas solar energy into the rural new energy to light up the lives of farmers

In recent years, with new energy projects in the Shangluo rural to promote the use of biogas,solar  into the tens of thousands of households, improve rural sanitation, to facilitate the life of the masses, was welcomed by the majority of farmers friends.

Recently, this reporter interview in Hill County slate town Geng Village, the villagers Yan column jade is at home cooking with biogas. Very clean up old Yan's Kitchen the stove also very simple, put a biogas stove on a stove. "Do not look at simple stove, but with the benefits!" Talking, rotating the igniter on the gas stove, "puff" sound, the blue flame whirring to jump up. Yan chu Yu told reporters, using biogas for cooking only health, but also fast, convenient than electricity affordable. Since biogas for cooking, kitchen, courtyard, toilets become much cleaner. He also cited the reporters said: "You see, digesters and pigsty, toilet cesspit attached, sealed with cement lid underground to produce biogas for cooking, bathing beside the digesters biogas residue, biogas slurry can be used as fertilizer use. "

Farmers at home, biogas cooking fuel in rural farms, biogas is also used to generate electricity. Walked in the town, Slate Hill County the Jiatai Aquaculture Co., Ltd., saw the factory courtyard clean the road on both sides of the pan-green vegetable slightly so that some remote village quiet. In Huang Changchang the led, the reporter visited farms and subsidiary of biogas stations, Huang Changchang told reporters, but not in a timely manner to deal with more and more With the constant expansion of the plant breeding factory pig manure. To solve this problem, in 2011 the company invested more than 200 million, this large 500 cubic meters of biogas power stations built in the breeding farm.

Reporter saw at the downstream of the farm, a more than 10 meters of biogas gas tank greeted one end of the gas tank through a pipe connected to septic tanks, and the other end connected to the power house of the yard, plant a orange generator sets working. Huang Changchang introduced, after the completion of the biogas plants, to solve the fecal contamination, also get the power. Power plants a year, generating more than 3,000 degrees, although not too much, but available for day-to-day factory lighting, cooking and also saves a lot of money. "He told reporters, then they are also ready to invest in building an organic fertilizer processing plants, biogas, biogas residue is processed into organic fertilizer.

The Hill County Bureau of Agriculture Deputy Secretary Xuqi Hong Hill County for seven years, cumulative build 14,464 household biogas district and joint household biogas 26, a medium-sized biogas, to promote the 2578 table, saving stoves, solar cookers 4960 units to complete The project investment is 129.51 million yuan. The implementation of the project, the effective protection of the firewood forest 173,569 acres, annual savings of 28,928 tons of coal, the overall economic efficiency of the project is 33.26 million yuan.

Reporters learned from the Agricultural Bureau of Shangluo City, Shangluo City, built in the rural household biogas 96000, a penetration rate of 17.5%, 12 new farms large biogas, building a farming community and joint household biogas project 171 2 tons of organic fertilizer processing plant, 396,000 to promote fuel-saving stoves, building solar cookers 29,000 14,000 saving stoves, solar water heaters, 100,000, 172,000 square meters, the completion of the rural biogas rural service outlets 224.

The Shangluo City Bureau of Agriculture Science and Technology Education Code section chief Yanxiang Tao said, currently, household biogas, residential biogas engineering and construction of large and medium-sized biogas projects in Shangluo full swing, solar cookers, solar water heaters, stoves and straw utilization of new energy projects have also settled in Shangluo, implementation of these projects to revitalize the Rural Energy Enterprise, the initial formation of the local conditions, pluripotent complementary, comprehensive utilization, Cost-effective "development pattern, the governance of the city's environmental pollution, accelerate green recycling economy The development has played a good role.

Genius whimsy

In addition, compared to traditional solar panel  power generation technology, power plant REhnu for environment impact is relatively small. Power plant construction without leveling the land, the generator will be built in the air above the ground, making the most of the ground from destruction, it will not be blocked by the battery plate.



Angel's name may be familiar with, not the general public, but for the people in the scientific research circles, but he represents the ocean-like broad creative cooperation with his counterparts, all blown away by him. For example, last year's Nobel laureate in physics, Australian scientist Brian Schmidt said Angel full mind is crazy idea, praised his creativity and genius universally rare, although Schmidt expensive for the Nobel laureate, but he also admitted that even he, including many scientists,grid tie inverter are not like Angel creative way to solve the problem.

He comment on Angel: "We are all responsible for the mop-up of the people, we find some of the obvious problems, get rid of them, but Roger does not like, he will take you into a new orbit, opening a new idea."

Use a mirror solar power, is just one of the Angel cope with global warming plan. In 2006, he proposed to mirror other heavy Magical. That year he discussed in a paper with glass reflects sunlight cast a shadow on the Earth's feasibility. He called the plan a "solar radiation management". He believes that, in case of the Earth suffered a major climate disaster in the future, you can use this approach to counteract the greenhouse effect. He suggested that a giant glass shield placed in the space, part of the sun toward the Earth energy reflected back to offset the greenhouse effect. The specific approach is billions of dollars to the space fired several glass umbrellas. To implement this plan, but also need a new launcher Angel the traditional rockets certainly not competent,power inverter  he suggested that the glass umbrella with guns in batches launched into orbit, and then assembled. He calculated that such a project will make the entire Earth sunshine a decrease of 2% or so, enough to offset the impact of carbon dioxide in the atmosphere doubled.

July announced that Corona is building a 100-megawatt photovoltaic power plant in Laiyuan County, Baoding Laiyuan County.

The planned construction period of the project from 2012 to 2015, is expected to invest 1.3 billion yuan. The project is completed, the annual savings of more than 6000 tons of standard coal, grid tie inverter which will further strengthen the new energy industry Laiyuan County, optimize the industrial structure.

Laiyuan County annual sunshine time of more than 2800 hours, the rich resources of solar radiation, air permeability rate, one of the richest regions of the country second-class solar. And the county's convenient grid access conditions for the development and construction of grid-connected photovoltaic power plant projects.

Investment in photovoltaic power inverter plants, Corona walk in Baoding China Power Valley "forefront of the enterprise. July, the company and the State Power Mongolia the electric energy investment company established jointly invest Moncaut New Energy Power Generation Co., Ltd., began in Inner Mongolia Erenhot building a 10-megawatt solar  power station.

The Jinglong: rooftop power station completed in

The Crystal Dragon Group Hebei PV "Hutch" one. This year, the factory located in Hebei Ningjin JA solar panel  rooftop power plant projects in central government subsidies. This reporter has learned that, by the end of July, the 2 MW power generation project has passed the acceptance of a third party.

The location of the of Yingli investment power station

Is a the Hebei Baoding counterparts reconstruction Xinjiang Production and Construction Corps, Second Division. It is reported that the Second Division, located in the desert, rich in solar panel  energy resources, open terrain, convenient transportation, rich in light and heat resources, photovoltaic development prospects in the development of photovoltaic industry has unique inherent advantages. In addition, the photovoltaic industry is the Second Division cultivate strategic emerging industries, after the completion of the photovoltaic industry will realize the advantage into the Second Division, resources, and growth of industrial economic strength, optimize the industrial structure, stimulating the development of the tertiary industry.

This power plant is put into operation after a year for the Second Division, provide more than 170 million degrees of green energy power plant during the lifetime (25 years) a total of 4.25 billion kWh of green power, the equivalent of saving over 100 tons of standard coal, reduce emissions 2.5 million tons of carbon dioxide.

For Yingli Group, the solar power plant will also become a "stepping stone" to broaden their market in Xinjiang, the Xinjiang developed into the domestic the emerging photovoltaic applications market.

High-tech Zone in Baoding Yingli Group factory roof,grid tie inverter power generation plan "again this year to subsidize the list of items included in the" Golden Sun "demonstration project of the central government. Yingli will join the city of Great Wall Motor Company, the construction of 50 MW rooftop power station will be able to generate electricity to 62 million per year.

Corona: Laiyuan 1.3 billion investment

Baoding Power Valley ", in addition to Yingli Group, Juli New Energy, Tianwei film photovoltaic, there is a company engaged in the unknown of the new energy control equipment manufacturing enterprises Corona Control Equipment Co., Ltd.. The company has a shareholder of the Institute of Electrical Engineering background, in addition to the product R & D and manufacturing of PV controller, controller, inverter, monitoring systems, current transformer, the company is also engaged in photovoltaic power inverter, wind power, wind / photovoltaic hybrid power and other renewable energy systems engineering, commissioning, installation and maintenance.

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