Design of a control limiter to improve the dynamic response of energy storage systems

This paper proposes an effective control scheme to improve the transient behavior of VSC-based energy storage systems facing energy saturations. This control is aimed to reduce abrupt transients following energy saturations of the storage device. The WSCC 9-bus test system is used for validating and discussing the proposed controller. In particular, the dynamic response of a battery energy storage undergoing energy saturations is tested considering deterministic as well as stochastic load variations. Simulation results shows that the proposed control scheme allows reducing installation costs while ensuring an adequate dynamic reponse of energy storage systems.