Research on primary frequency modulation control strategy of wind power based on energy storage

Abstract

As a renewable energy, the uncontrollability of wind energy resources will cause the instability of the power grid. The research on the primary frequency modulation control strategy of wind power has become an urgent problem to be solved. Doubly fed wind power generation is the mainstream generator. The main methods of participating in frequency modulation include inertia control method and load shedding control method. This paper analyzes the doubly fed wind turbine model, analyzes its problems in the process of frequency modulation, and establishes the frequency modulation control strategy of wind turbine in the whole wind speed range by selecting the critical wind speed point. Energy storage technology has the advantages of instantaneous accurate response, safety and reliability. Based on the above, this paper studies the primary frequency modulation of wind power energy storage.