Design of a Model Predictive Controlled Single-Stage Boost Assisted High Frequency Inverter for Wireless EV Charging System

Abstract

This article proposes a new Wireless EV charging system with a single stage boost assisted flyback (SSBAFB) inverter. Also, this presents Model predictive (MP) control for the proposed system. The key merits of the proposed SSBAFB inverter are better efficiency (boost stage optimizes the energy transfer), cost-effectiveness, possibility of integrating with renewable sources. The significant features of MP control are predictive performance, better dynamic response, multi-objective control, robustness, and many more. In the literature, two MP controls were employed, one on the transmitter side and the other on the receiver side for controlling efficiency and load regulation respectively. The proposed MP-controlled SSBAFB inverter-based WPT system utilizes single MP control, which can attend to both load regulation and efficiency enhancement. To validate the performance of the proposed WPT system, a 3.3 kW laboratory model has been developed. The steady-state and dynamic performance of the proposed system under closed-loop control exhibits better performance. The comparison of the proposed converter with possible converter topologies shows that the proposed converter stands out in producing high efficiency. A comparative study of the proposed MP controller with other conventional controls proves that the proposed MP controller offers better steady-state stability and fast dynamic responses.