Market development pattern of China's wind-wind complementary system industry in 2018

Abstract from Sohu Network

    According to the "China wind-solar Complementary System Market Research and Future Forecast Report (2018 edition)" released by Limu Information Consulting, at present, in foreign countries, with the in-depth study of wind-solar complementary, remarkable results have been achieved, including the development of system optimization software based on wind-solar complementary development, simulation operation software development and so on. It can realize practical and important functions including real-time simulation operation with high precision, load characteristic description and solar radiation data display.

    China''s wind-solar complementary power generation system is still in its infancy, but it is developing rapidly. The main restricting factor is lack of funds, which is mainly used in remote communication relay stations, address exploration and investigation bases, farmers and herdsmen, frontier defense and other fields. The scale is small. The research of scientific research institutes is also limited to the control optimization of voltage stability and equipment simulation.

    The wind solar complementary system in China mainly adopts the most basic power generation system. Mainly including photovoltaic cells, fans, controllers, inverters, batteries, support equipment, etc. The main principle of power generation is that when there is sufficient sunlight, the photovoltaic panel components generate direct current, and the wind turbine generates a small amount of alternating current. Both are rectified and controlled by a controller, with one part supplying power to the load and the other charging the battery for backup. At night or in winter, the electrical energy of the fan and battery is inverted to supply AC loads. At present, it is mainly used in isolated island power systems and rarely used for grid connection. In cities, wind and solar complementary power generation systems are mainly applied to urban street lights or lighting scenes.

    In 2000, the Yangtze River Source Nature Reserve in China installed a 1000W/400Wp wind solar complementary power generation system, which is an important application example of wind solar complementary power generation. In 2004, the 54MW/100kWp large-scale wind solar complementary power plant of Huaneng Group was integrated into the 10kV local power grid, marking the pioneer of large-scale wind solar complementary power generation system integration and operation in China, and also the first officially commercialized wind solar complementary power generation system. The operation of the wind and solar system has brought good economic benefits and huge social impetus. With the 21st century development plan released by the State Council clarifying the strategy of developing solar and wind energy jointly, China''s wind and solar complementary industry has taken a decision-making direction.

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