Discrete time analysis of High gain Bidirectional DCDC Converter with single edge PWM

Abstract

Coupled Inductor based bidirectional DC-DC converter (CI-BDC) is suitable topology for relatively high step up DC gain for PV,EV and PHEV applications. Performance of CI-BDC will be different when different PWM Techniques are used for switching. In present work the effect of different PWM topologies on performance of CIBDC will be analysed with the help of discrete time modelling. To control the output voltage and load current of the CI-BDC closed loop control has implemented. A suitable compensator is designed to eliminate right hand zero effect and instability in the system.