Present situation and the process of power generation technology in China to understand the detailed PV
(1) the progress of photovoltaic power generation
Our country began to study solar cells in 1958, in 1971 successfully applied for the first time in China to launch the "Dongfanghong No. two" satellite. The beginning of 1973 solar electric he used in the ground. Photovoltaic industry in China is still in the embryonic form in twentieth Century 80 years ago, the annual production of solar cells has been hovering below 10 kW, prices are also very expensive. In twentieth Century 80 years later, countries began to make the development of PV industry and PV market support, the central and local governments invested funds in the photovoltaic field. The solar cell industry in China has been consolidated and in many applications built a demonstration, such as microwave relay station, military communication system, water and oil pipeline cathode protection system, the rural carrier telephone system, small household and village power system and grid connected power system. At the same time, China has introduced from abroad a plurality of solar cell production line. To 200L years, Chinese solar battery production capacity has reached 6.5Mw / A, the price has dropped to 40 yuan / W, the PV market development has played a positive role in promoting. The actual production capacity in 2001 China solar cell reaches 4.5Mw, the cumulative capacity has more than 20 MW.
(2) solar electric his research and production level
As our research of his solar power mainly focus on the single silicon solar battery, practical efficient monocrystalline silicon solar battery, polysilicon solar cells, amorphous silicon solar battery, solar cells by arsenic space before, silicon solar cell and its system, steel and copper tin and vulcanizing pot compound thin film solar cells and solar power he and system. Some of the solar energy he used materials were also studied and localization.
On the production side, the Chinese solar electric his main products are silicon too delegation to battery and amorphous silicon solar cell production test, only a small amount of polysilicon solar cell. Monocrystalline silicon, the production of our country commercial polycrystalline silicon and amorphous silicon his efficiency were 11% 14%, 10% 12% and 4% 6%, compared with the developed countries, 1% lower than 2%. The solar battery component of the life of 20 years.
(3) the development of photovoltaic power generation market
China has in the photovoltaic pump, independent operation of inverter, grid connected inverter, communication controller for photovoltaic system special measuring equipment components has made new progress, and has gained some experience in the development of photovoltaic power station, scenery complementary power station, solar home system phase grid connected power system. The same ambiguity in the serialization of products, modular, standardized, intelligent and industrial production has also made some progress.
Photoelectric current market in China is still the largest field of communication, including microwave relay stations, satellite communication, satellite TV receiving differential rotation system, history school telephone switches, military communication station, the current market share of about 50% in series.
It is particularly worth mentioning is organized by the national power company to implement the Tibet photovoltaic construction work station and the national 3 ministries and commissions to organize the implementation of the Tibet Ali photoelectric plan. The former began in 1989, after 10 years of hard work, completed in 1999, built a total of Amdo, Bangor, fuck, lake, Ji Ji, Gerze and Cuoqin 7 county-level photovoltaic power stations, the total installed capacity of up to 425kw (Feng Zhi). Tibet Ali photoelectric plan beginning in 2001, completed in 2004, building 38 Township photovoltaic and push in Ali Area
11000 set of residential photovoltaic lighting system.
At present, the G family planning organizations in the implementation of the photovoltaic power generation and wind power generation to solve the remote areas without electricity for about 23000000 people living with bright electric engineering is Chinese West in full swing, the pilot project in Inner Mongolia, Gansu and Tibet provinces have been successfully completed. The next few years the state will also invest 2000000000 yuan, the use of renewable energy (mainly photovoltaic) solve the supply problem of rural northwest areas without electricity, the application of photovoltaic power generation in our country in the field of play a positive role in promoting.
Grid connected photovoltaic technology is one of the world's photovoltaic power generation, photovoltaic technology for large-scale power generation is step, become a major technical step electric power industrial part of photovoltaic products, in the international market has accounted for 18% of the total.
Small wind / light complementary power system in our country started large-scale application. For tens of thousands of sets have been popularized household scenery complementary power supply system in Inner Mongolia.
In systems engineering, due to a variety of factors, such as technology economy, with many potential applications, such as large (> 100kW) photovoltaic or wind / light / diesel hybrid power system, solar desalination system, solar water pumping irrigation project, solar electric vehicle, hydrogen production system and large scale photovoltaic grid connected photovoltaic power generation have yet to be further development. |
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