Provision of Two area Automatic Generation Control by Demand side Electric Vehicle Battery Swapping Stations
Application of demand side resources to automatic generation control (AGC) has a great significance for improving the dynamic control performance of power system frequency regulation. This paper investigates the possibility of providing regulation services by demand side energy storage in electric vehicle battery swapping stations (BSS) An interaction framework, namely station to grid (S2G) is presented to integrate BSS energy storage into power grid for giving benefits to frequency regulation. The BSS can be regarded as a lumped battery energy storage station through S2G framework. A supplementary AGC method using demand side BSS energy storage is developed considering the vehicle user demand of battery swapping. The effects to the AGC performance are evaluated through simulations by using a two area interconnected power grid model with step and random load disturbance. The results show that the demand side BSS can significantly suppress the frequency deviation and tie line power fluctuations.