Power imbalance‐based droop control for vehicle to grid in primary frequency regulation

As demand for electric vehicles (EV) grows, interest in vehicle-to-grid (V2G) is increasing. Although V2G provides additional flexibility power systems, it can be an inconvenience the EV owner and shorten cycle life of batteries. In this paper, we propose a power-imbalance-based droop control (PIDC) V2G, which uses estimated active imbalance between supply demand, without any communications or dispatch signal from automatic generation (AGC). Unlike existing frequency control, proposed method controls based on imbalance. The Imbalance electricity was using swing equation, deviation, rate change (RoCoF). Conventional has slow response speed because only considers deviation. Using PIDC, critical drop discerned faster could react more quickly situations. Additionally, battery preserved ordinary fluctuations where unnecessary. This study used MATLAB R2020a to show effectiveness performance PIDC. case results showed that PIDC preserves compared control.