Energy management strategy for super capacitor energy storage system based on phase shifted full bridge converter

Abstract

In order to improve the efficiency and extend the service life of supercapacitors, this paper proposes a supercapacitor energy management method based on phase-shifted full-bridge converter. The method uses the supercapacitor state of charge (SOC) as a reference and combines the DC bus voltage fluctuation to quickly control the energy bidirectional flow. The simulation is carried out in Matlab/Simulink. The simulation results show that the proposed method combines SOC estimation and energy conversion, which can realize the optimal management of super capacitor and has fast dynamic response capability.