High-Proportion Wind Power System Risk Scheduling Considering Peak Regulation and Frequency Safety

Abstract

With the development of the novel power system under the “carbon peaking and carbon neutrality” goal, the problem of frequency regulation and peak regulation caused by the fluctuation characteristics of wind power is highlighted. It is necessary to fully consider the influence of wind load fluctuation on reserve optimization and verify the frequency stability of the system under the disturbance of power shortage when formulating the day-ahead unit commitment scheme. In view of this, the virtual inertia control and load shedding control of wind power are added to the frequency analytic expression. The linearized frequency nadir is added in unit commitment optimization model. Based on the conditional risk value theory, the risk scenarios of wind power and load uncertainty are considered to the optimization of spinning reserve, the unit commitment scheme meeting the demand of risk peak regulation and frequency safety is obtained.