Abstract
China's renewable energy development bases are mainly concentrated in the "Three North" areas. The phenomenon of renewable energy power abandonment is serious. As a flexible resource, energy storage can effectively shift electricity and improve the utilization of renewable energy. Firstly, the output model of electric energy storage equipment is established. Secondly, a time series production simulation optimization model considering the output characteristics of electric energy storage equipment is constructed. Finally, taking an actual large-scale renewable energy and thermal power transmission system in the north through UHV AC / DC lines as an example, the system operation, renewable energy consumption, economy and other issues after energy storage access are quantitatively analyzed. The results show that the reasonable allocation of energy storage is conducive to improving the consumption capacity of renewable energy, reducing the utilization hours of thermal power, and improving the economy of system operation. It is of great significance to the development of renewable energy power system and energy storage equipment.
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