Modeling and Simulation of Fuzzy Logic Controlled Pulse Density Modulation for Bidirectional Inductive Power Transfer

By enabling seamless Grid to Vehicle (G2V) and Vehicle to Grid (V2G) operations, the new bidirectional wireless power transfer (BWPT) technology offers greater flexibility without the need for human involvement. However, power factor management, efficiency, and power transfer rate are problems with BWPT systems. Advanced control systems are necessary to solve these problems. Bidirectional systems need dual-side management of power converters to effectively handle G2V and V2G activities, although unidirectional Wireless Power Transfer (WPT) can be effectively managed by traditional control techniques and power factor corrector (PFC) procedures. Additionally, the body of current literature primarily concentrates on increasing power factor for unidirectional WPT systems. In order to improve PFC control for BWPT, this research proposes a dual-phase shift Pulse Width Modulation (PWM) approach. The proposed method is thoroughly examined, with particular attention paid to power factor, bifurcation, total harmonic distortion (THD), and power losses. The system’s effectiveness is demonstrated by simulation studies, experimentation, and verification conducted at an operating frequency of 85 kHz and a power rating of 3.7 kW. In both power transfer directions, dual-phase shift control produces simulated results with 94.4% power transfer efficiency and experimental findings with 90.1%.