From the "bazaar" to the professional exhibition

A five-day fair in September 19 was closed. As China - Arab Economic Forum, an upgraded version - First China-Arab Expo gratifying results , but also a great room for improvement .

About Yinchuan International Convention and Exhibition Centre , will see several big white tent , from China , the Arab countries and African countries featured products selling fun. Iranian carpets, Turkish dried fruits, handmade bronze Pakistan , Uganda, tambourine , China 's tea silk ...... customers to select a bizarre colored merchandise. This scene reminiscent of the "Arabian Nights" stories depicting Arab bazaar , imagine years ago on the Silk Road between China and the Arab countries business dealings .

Fair like a Grand Bazaar ( market ) . "I think the show of little help to us ." Tianjin Electric Drive Design and Research Institute Co., Ltd. R & D Center upright photovoltaic products sales manager Zhang Yan . His company producing photovoltaic dc to ac inverter , the expectation at the show with peers exchange, but to the future only to find there is more like a " hodgepodge " and no PV industry professional exhibition, visitors to focus exclusively on photovoltaic products are less , reach the purpose of communication .

Beijing HRH Media Group stage director Cui Anming of Hanas New Energy Holdings Group designed the booth . He felt that the show is still much room for improvement . "For example, when we were asked to patrol hall wearing a logo, but we still do not know the next day wear , the result is some trouble ." Cui Anming proposal , the organization shall promptly notify the attention , while the venue operations should improve efficiency. "The show is a good platform, but need to think about how to make better use of this platform should be targeted to attract audiences ." Cuian Ming believes that this exhibition can suddenly catch the eye of the little things .

Zhejiang Energy Group to build the project in Ningxia power cite Department assistant general manager Zhang Qi also expressed his disappointment : "We are currently in the Arab countries are poorly understood , although investment interest , but no direction with the show originally wanted to know some Arab counterparts , but came after the discovery , energy companies from Arab countries is very small , basically these are China 's enterprises in the exhibition . " Zhang Qi energy cite proposed to hold a special exhibition.

It seems , from the Bazaar to mature professional exhibition, in A Fair is still a long way to go.To learn more please visit: http://www.sungoldpower.com/

Although there are many shortcomings, but as the first session of the Sino-Arab Expo , the results are still impressive . Expo project signing ceremony, trade and economic activities of 158 contracted projects , the contract amount 259.901 billion yuan . This figure exceeds the previous three sessions of Arab Economic Forum 's total contract amount , bilateral economic and trade become a milestone in the development process .

Hefei sunlight is China's largest manufacturer of solar inverter power supply, the products are mainly sold to Europe

Recently from 900 million for large power station in western China, let its shares rise rapidly.

A pv inverter manufacturers also tells a reporter: "for the entire system, solar silicon solar energy components account for 60% of the cost, but 40% of the cost also includes other appliances and install the product inside.

Although the crystal silicon batteries appeared a serious surplus, but the inverter and other power converter need electrical equipment condition is much better, even while maintaining a certain growth market demand.

Especially in the field of distributed photovoltaic market is about to start, the core parts such as the micro inverter in the Chinese market is basically blank."

So, expand the train of thought, do the industry chain long, photovoltaic excess capacity is also cracked a dose of medicine.

Path: centralization and distribution of construction is better

Start the domestic market all have no objection, split on whether, like the wind, take big base construction mode, or like Europe and the United States, families distributed construction mode.

Concentration is can quickly do the benefits of the construction of the large market, the rapid easing overcapacity is undoubtedly the most effective.

Moreover, the construction train of thought on the construction of wind power has let us see the dc to ac inverter .

However, centralization is power out of the side effects of the difficult.

Wind power base of the construction of the sequela is today's large wind.

Therefore oppose opinion, if the photovoltaic continue to wind path, today's overcapacity may defuse temporarily, but in the future if there is "discard", not necessarily on the sustainable development of the whole photovoltaic industry.

Photovoltaic (pv) industry, or slowly from the deep valleys

If really appear the European Union with heavy taxes and domestic situation of rescue, inverter, power plant construction in the field of two degree of benefit is higher than the silicon chips and components, the power supply (inverter), variety and sea embellish power converter hydropower station is remarkable.

If considering the countermeasures taken by China to the European Union polysilicon polysilicon prices rise, so will change especially electrician (poly dragon) was the first to benefit.

Shares catalyst: central photovoltaic ease trade friction, China to expand domestic demand to support policy developed, photovoltaic company stocks than expected quarterly reporting

Industry risk factors: the double in China an early cut, heavy taxes, low domestic rescue efforts

"Double reverse" talks cannot hide photovoltaic industry recovery

European Union to China pv industry at the beginning of the "double reverse" tax rounds of talks, for overseas polysilicon industry in China or is expected to "double reverse" for the sanctions.

And warren buffett heavily involved in new energy field, also let investors for photovoltaic plates produce the infinite daydream.

On top of that, the photovoltaic company also gave a clear signal, warmed up a quarterly holes of China's dc to ac inverter is on the difficult path of recovery.

The preliminary cloud photovoltaic (pv)

On May 23, the European Union "double reverse" tax initial round of talks hit the pv sector empty low open, sea embellish photovoltaic (pv), crystal photoelectric, Rio nissin can related stocks, which fell sharply in the trading of yingli green energy, suntech power tumbling.

The eu decided to impose a average tax rate since June 6, temporary duty of 47%.

At present, within the eu and the European photovoltaic industry has objections, temporarily difficult to agree on.

The final results will be announced within 12 months.

Europe and the United States capital to China's high quality photovoltaic assets

At present, the Chinese sine wave inverter products remains unchanged dependence on European and American markets.

According to statistics, by the end of 2012, China's photovoltaic production more than 25 gw, but more than 80% still rely on the international market.

Moreover, the current should be alert to Europe and the United States capital bottom China pv enterprises.

The personage inside course of study thinks, the Europe and the United States against China "double reverse" survey of photovoltaic industry, should be the European capital of a conspiracy.

Europe and the United States capital opportunity to turn into bad on China pv industry, and then to cheap photovoltaic industry asset acquisition, and then restart the European and American markets.

At the end of 2012, the German solar SMA announcement of key enterprises, has been to jiangsu megavolt love new energy co., LTD.

Signed a contract to buy the 72.5% stake.

This marks a 40% global market share of the SMA formally enter the Chinese market, for the next three years, 20 billion yuan of inverter sales market in China.

At present, the domestic dc to ac inverter enterprises should adhere to the "walking on two legs" domestic and foreign markets.

At present, with the start gradually in the domestic market, domestic photovoltaic enterprises began to expand domestic and European and American markets outside sales.

Such as, shandong linuo group will be two-thirds of the battery components in domestic sales this year, at the same time open up Japan, Africa, Australia, Middle East and other markets.

Start power photovoltaic in domestic market steady

To start the domestic pv market, countries have issued a series of bailout policies.

After the national "golden sun" project, in 2010 countries began to pilot the ground construction of large-scale photovoltaic power station.

In 2011, the pv power is growing rapidly, of which only a year in qinghai province new installed more than 1 gw.

Faced with pv and other new energy products in the export of retaliatory action

Should use dc ac inverter diplomacy actively, change the passive situation.

Photovoltaic products to China, for example, in response to the eu anti-dumping case, in the process of our country from three aspects: government, industry organizations and enterprises carry out the work of the new energy diplomacy, and achieved some results.

In August 2012, the then Chinese premier wen jiabao met with German chancellor Angela merkel made it clear that when hope to resolve trade disputes through negotiations, to avoid the anti-dumping, and strengthen cooperation; The national federation of industry and new energy chamber of commerce held on August 26, 2012 against the eu antidumping conference also specifically invited foreign related agencies and solarworld to coming to China to our dialogue, consultation to resolve trade disputes; Four big headed by yingli solar enterprises also through to the agencies, actively communication and negotiation with relevant enterprises and departments, trying to prevent the case in the European Union.

No matter how, finally the case moves the multi-level foreign concept of new energy, will become the effective way of dealing with trade disputes.

In the future we should be more active, have deployed, comprehensive, multiple points of view on new energy diplomacy, to deal with new trade friction.

Microscopic point

@ yingli liberation: dc to ac inverter from 2011 to now have a larger impact, especially Europe and the United States is now the "double reverse".

What the "double reverse" actually is not bad thing.

At present Chinese enterprise in product quality, technology, cost and size all have advantages.

Photovoltaic industry in the future as the economic recovery will be gradually out of the trough.

Currently the international community's demand for new energy is very large, especially the power of each country security configuration would lead to the photovoltaic industry to develop

In 2012, our pv exports rose by nearly 40% compared with 2011, and mainly on emerging markets.

@ jinkosolar Qian Jing: since the fourth quarter of last year, order demand is exuberant, jinko will have full production line, but still has a big gap and the demand, particularly in Europe, Japan, India and the domestic orders a lot.

Byd power inverter of new energy solutions

The 7th international power inverter show in Shanghai concluded, byd launched a photovoltaic components + + inverter after day system + new energy storage system overall scheme, has caused wide public concern.

This is byd's new initiatives in the field of solar photovoltaic (pv).

The reporter understands, byd photovoltaic modules, in the byd in 2012 blockbuster launch high efficiency TOP. 5 photovoltaic modules after the new technology, improve technology again.

With highly efficient cell to reduce consumption of precious metals as well as the use of new packaging materials double glass components, implementation can production high efficiency long life and low cost of photovoltaic modules.

Learned, byd for solar power station project developed a unique system.

Two large photovoltaic dc to ac inverter is twice the UL certification, become the world's third UL certification enterprises.

Change especially electrician new energy company organized in the last few years the largest exhibition team, shows the latest outdoor 100 k3, 50 k3 inverter, the latest research and development of the 500 kw inverter, as well as the integration of computer room.

On the first day of the exhibition site, change especially electrician new energy company in 560 in E2 hall with beautiful booth design, exquisite exhibits appearance shape attracts many international customers of eyeball, the booth consulting to clients an endless stream, when they realized that the development of new energy company in the global pv market situation, showed a strong interest in new energy company, and negotiation and communication regarding the further business cooperation.

At present, the global pv industry development into a trough, at this point, the change especially electrician new energy company showed prominent "the whole industrial chain advantage" and "innovation advantage".

New York senator Charles & dc to ac inverter; Charles schumer

November 2012 (network) on Monday announced that he and his team is working with the United States trade representative, grid tie inverter and the Chinese government has been closed on the Alibaba.com merchant 380 fraud.

According to our customers and our survey found that these fake of morning star products have been exported to all over the world.

As a result, these counterfeit products are on the international market pose a threat to our customers and their property, destroy the morningstar's reputation for quality, and damage the reputation of China.

Morning star company is the world's leading supplier of dc to ac inverter and inverter.

There are more than 2 million units installed in more than 67 countries and regions all over the world.

Morningstar has always been to provide the industry the best overall customer value as the goal, the design and manufacture of solar charge controller and inverter frequently as the industry product performance, functionality, and quality and reliability of the reference standard.

Morningstar has authorized distributor in Beijing, China, please users to purchase products through formal channels.

Because the module has developed rapidly, the importance of packaging dc ac inverter is increase at an alarming rate.

Because packaging technology can make a variety of devices used in one module.

IGBT, for example, combined with SJ - MOSFET and IGBT combined with SiC diodes, etc.

These devices of heat resistance and support different frequencies, so after the chip bonding Cu substrate stage, cooling stage and chip installation phase need to technological innovation.

In addition, also need to technological innovation in the wiring.

Topics include, to continue to use the wire bonding? If so, is the use of aluminium wire or copper wire? Is to use belt type welding (Ribbon Bonding) or copper bumps?

These technological advances in the field of makes the IGBT again took to the road of growth.

Because of the wind turbines, renewable energy and railway fields dismal performance in 2011, IGBT market appeared to slow down in 2012.

A year later to show the effect, because of these devices and modules have inventory and these devices production cycle is long.

All sorts of IGBT device and IGBT module sales in 2011 to $2011, irregular growth trend will be change in the future.

In 2013 is expected to a certain degree of recovery, and slow down slightly in 2014, after waiting for economic recovery and stability, will be steady growth since 2015.

The development of computer technology, the computer put forward green and green dc to ac inverter

Green computer refers to harmless to the environment, personal computers and related products green power refers to the green computer related efficiently save electricity power inverter , according to the U.S. environmental protection agency in l992 on June 17, "energy star" program, desktop personal computers or related peripheral equipment, the power consumption in the sleep state, if less than 30 watts, accord with the requirement of green computer, improve the efficiency of power inverter is the basic way to reduce power consumption.

Current efficiency is 75% of 200 w switching dc to ac inverter , power inverter itself consumes 50 watts of energy.

2.2 communication of high frequency switching power inverter

Telecommunication industry has been heavily promoted by the rapid development of the development of communication dc to ac inverter. 

High-frequency miniaturization of switch power inverter and its technology has become the mainstream of modern communication dc to ac inverter system. 

In the field of communication, often will be called a rectifier power inverter, and DC - DC (DC/DC) converter referred to as the secondary sine wave inverter .

A single-phase or three-phase ac power grid is the role of the power to transform the nominal value of 48 v dc dc to ac inverter. 

In SPC exchange with a sine wave inverter at present, the traditional phased type regulated sine wave inverter has replaced by the high frequency switching power inverter, high-frequency switching sine wave inverter (also known as switch mode rectifier SMR) by MOSFET and IGBT high frequency work, general control switch frequency in 50-100 KHZ range, to achieve high efficiency and miniaturization. 

Expands unceasingly in recent years, the power switch rectifier capacity, capacity of f from 48 v / 12.5 A 48 v / 20 A, extended to the 48 v / 200 A, 48 v / 400 A.

Because there are many types of integrated circuit used in communication equipment, the sine wave inverter voltage is also each are not identical, in the communication power inverter system with high power density of the high frequency DC - DC isolation power inverter module, from the middle busbar voltage (generally of 48 v DC) into the various DC voltages, it can greatly reduce the loss, convenient maintenance, and installation, increase is very convenient. 

Generally can be directly mounted on a standard control panel, the requirement for the secondary power inverter is a high power density.