A few years ago, with the policies of Spain, Germany, the United States and Japan on their own photovoltaic industry,
With the support, the global sales of photovoltaic power generation inverters have increased year by year, and photovoltaic power generation inverters have become successful.
Has entered a stage of rapid growth. But at present, the global photovoltaic inverter market is basically monopolized by several international companies.
Europe is a pioneer in the global photovoltaic market and has a sound photovoltaic industry chain.
Photovoltaic inverter technology is in the leading position in the world. SMA is the earliest and largest photovoltaic device in the world.
Inverter manufacturers (Germany's market share exceeds 50%) account for about the global market share.
One-third, the second is Flonis. The top seven manufacturers in the world account for nearly 70%.
Market share.
After the financial crisis, the American and Italian markets developed rapidly, especially the American market.
After the Obama administration took office, it developed very fast and will replace Germany as the world's number one.
Consumer market of large photovoltaic inverter.
At present, the domestic photovoltaic grid-connected inverter market is small, and domestic inverter manufacturers
There are many inverter manufacturers specializing in photovoltaic power generation systems, but there are also many countries.
Domestic enterprises have studied in the inverter industry for many years, and they have a certain scale and competitiveness.
However, there is still a big gap between the quality and scale of frequency conversion technology and foreign enterprises. Currently there are
Larger manufacturers include Hefu Sunshine, Beijing Kono Ye Wei, Beijing Suoying, Zhicheng Champion,
Nanjing Guanya and Shanghai Li Yingwei New Energy Technology Co., Ltd. and other enterprises. Currently, these companies use
The output of photovoltaic system is increasing year by year.
Although the domestic market is small, the huge market development of photovoltaic power station market in the future is empty.
The development potential has brought historic development opportunities for domestic enterprises. At present, domestic photovoltaic inverter
Mainly occupied by brands such as Sunshine Power, Esma and KACO. Most foreign companies passed.
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The agent channel enters the domestic market, and the overall market share is not high because of the difficulty in after-sales service.
Tall man. According to statistics in 2008, photovoltaic inverters in Hefei Sunshine Electric Power Company accounted for more than 70%.
Inverter market share, domestic key photovoltaic projects, high-power products are almost all made in China.
Products.
From a technical point of view, domestic enterprises are in the process of conversion efficiency, structure and technology, intelligence,
There is still a certain gap between stability and foreign advanced level. At present, China is in a low-power inverter.
The inverter is at the same level with foreign countries in technology. On the high-power grid-connected inverter, the high-power grid-connected inverter is adopted.
The inverter still needs further improvement and development.
4. 1.5 development trend at home and abroad
The development trend of solar inverter in the future will be towards high conversion efficiency, stable performance and
Grid-connected inverter is the mainstream direction.
(1) conversion efficiency is high.
With the continuous development of solar inverter technology, the conversion efficiency is rising, from the past.
90-92% has risen to over 98%, and the future goal is to reach over 99%. Therefore, the conversion
The improvement of efficiency is one of the future development trends of solar inverter.
(2) stable performance
Performance stability is a factor that system operators pay more and more attention to when choosing inverters. sun
The characteristics of inverter products include reliability, durability, simplicity and convenience of installation,
Whether the grid connection is safe or not is the key consideration of system operators, so solar energy is needed.
The stability of inverter performance is an inevitable trend.
(3) Grid-connected inverter is the mainstream.
Technically, grid-connected inverter is developing towards high frequency, high efficiency and high power density.
Degree, high reliability and high intelligence are the future development directions.