Real-Time Adjustment of Load Frequency Control Based on Controllable Energy of Electric Vehicles

Abstract

The time-varying characteristics of electric vehicle (EV) controllable energy and the rationality of frequency regulation (FR) task allocation have significant influences on participating in system FR. Considering the various types of EV, the controllable quantities and the real-time controllable energy of EVs are simulated and calculated. On the basis of the real-time changes of EV’s controllable energy, the real-time allocating scheme of system FR coefficient is put forward. The simulation results show that the real-time adjustment of load frequency control (LFC) model based on dynamic controllable energy of EV can effectively suppress the system frequency deviation; under the same total battery energy, the electric private car participates in the system FR for the longest time, the real-time controllable energy of which is the largest; the real-time allocating ratio of system FR has a wide range of fluctuation, and the FR effect under real-time allocation mode is better than that under the fixed allocation mode.