Citation:

A.Mathavan, K.Gokulraj, 2023. "An AC-DC Interleaved ZCS-PWM Boost Converter with Reduced Auxiliary for High-Voltage EV Battery Systems  3(2): 52-58.

Abstract:

This work presents a novel approach for the design of a single-stage AC/DC isolated adaptive-network-based fuzzy inference system (ANFIS) controller for board chargers in electric vehicles (EVs) with high-voltage (HV) battery systems. The proposed converter utilizes a modular stacked switches structure with interleaved control, combining modular interleaved bridgeless AC/DC boost converters and modular CLL resonant circuits. By sharing the two legs of the stacked switches, the voltage stress across each switch is reduced to half of the DC-link voltage, making it suitable for HV battery systems (e.g., 800 V) in EVs.

The design incorporates integrated interleaved boost circuit modules to achieve low input current ripple. Two step-up resonant circuit modules are connected to the interleaved legs, with their outputs connected in series at the input of a current-fed high-frequency rectifier. To achieve soft-switching commutation, an ANFIS is used for all switches and diodes in the proposed converter.

The performance of the proposed design was validated through simulations using MATLAB Simulink. The results demonstrated that the converter achieved a peak efficiency, confirming its effectiveness in charging HV battery systems in EVs.

References:

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Keywords:

EV Battery System, AC/DC Converter, ZCS-PWM Boost Converter.