A Self-scheduling Strategy for Electric Vehicles Participating in Power System Frequency Regulation

The proportion of new energy power generation in the power system has soared, and the short-term mismatch between power supply and demand has gradually become a serious problem, followed by the fluctuation of power system frequency. Demand response has the advantages of fast response speed and accurate response, which is one of the good choices to solve this problem. As a kind of abundant and high-quality demand-side resources, electric vehicles (EVs) can play an unusual role in the frequency regulation of power system. In this paper, considering the different power of EV in different stages of charge and discharge, a self-scheduling frequency regulation strategy of EV is proposed. It is realized by control rules based on random numbers. It reduces the cost of communication system construction, prevents invalid response caused by communication blocking, and improves reliability of demand response.