An effective controller design for switched capacitor LUO converter used in hybrid electric vehicle application [articol]

Abstract

In hybrid electric vehicle (HEV), power electronic interface and its control draws more attention towards better utilization of energy sources. To this purpose, an efficient hybrid switched-capacitor (SC) bidirectional DC–DC converter is designed and interfaced between the dual energy storage systems (ESS). A closed loop controller is designed to regulate the power flow and facilitate reverse power flow during regenerative braking. The performance of the converter is analysed with respect to power conversion efficiency, current ripple and robustness to operate in both quadrants. Simulation is carried out in MATLAB/SIMULINK environment to verify and validate the performance of the system in various operating modes.