according to the characteristics of the AGC in China, and present a method to calculate AGC cost, this method divide AGC cost into power generation cost, equipment investment cost, opportunity cost and adjusting cost. Make independent power producer automatic generation control cost get reasonable recycling, enhance the enthusiasm of the plant to provide ancillary services, avoid causing aspects of the contradiction between supply and demand, and providing assistance to reduce the impact on the quality of power supply. The last is verified by an example.
In order to promote the development of wind power and accelerate the efficient use of new energy sources, countries have brought energy storage systems into grid-connected wind farms to achieve efficient and stable operation of the wind power plant. This paper recounts the latest development status and trend of wind power at home and abroad, and introduces the principle of power conversion between energy storage system and wind farm. Based on the existing research results, it analyses power system stability related to wind power, low voltage ride-through ability of wind turbine, wind power penetration limit, as well as power quality issues. It also describes the new ideas about how to use energy storage technologies to solve the problems faced by the wind power.
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