Design of Controller for Bidirectional Non-isolated High Gain Converter in EV Application

Abstract

An interface between a DC supply and an electric vehicle's drive fed by an inverter is a bidirectional DC-DC converter. In this research, a topology for an electric vehicle based on an induction motor that integrates a high voltage gain bidirectional non-isolated DC/DC converter with a three-phase inverter is proposed. This study compares a bidirectional DC to DC converter inverter system controlled by fuzzy logic (FL), and fractional order proportional integral derivative (FOPID). The suggested converter runs in discontinuous-current mode (DCM), with all switches and diodes switching at zero current. It is possible to operate across a wide duty cycle range while maintaining high output voltage gain, low switching stress, minimal switching losses, and high efficiency. The proposed converter's size and weight are decreased so as to support a wide range of duty cycle operations, maintain lower voltage stress on all devices, ensure equal current sharing among inductors, are simple to control, and require a more compact inductor. The converter also uses a constant input current which offers a choice for various applications. MATLAB Simulink is used to construct, model, and simulate open loop system, closed loop FL and FOPID. The results of these simulations are then reported. The investigations show that FOPID controlled DC-DC converter performed better response.