A seven switch all in one power electronic topology for converted plug-in hybrid electric vehicle

摘要

The paper presents a concept of seven switch power electronic topology capable of performing motoring, regeneration, plug-in charging and IC engine charging for converted plug-in hybrid topology. First, Integrated Converter act as charger reducing requirement of separate converter for charging with single phase charging functions (with the facility of three phase). Second, the same converter is used for charging the main battery when the internal combustion engine is running. Third, the same converter will act as an inverter in electric/hybrid electric mode supplying power to wheels through motor from the battery. Forth, the regeneration mode, the machine's phase windings energize the dc-link voltage i.e. battery through same converter act as a rectifier. The electrical energy flow within the drivetrain is controlled by a power electronic converter with less power switching devices and magnetic devices. During charging mode, the power converter and the machine phase windings are controlled with a three-phase magnetic contactor to enable the use of the ac-dc rectifier for charging the battery. It has the advantage of charging through IC engine at running and standstill condition. The passive power factor correction is used while plug-in charging mode, moreover optional active power factor correction for very high-quality input waveform and non-isolated grid charging is possible. Simulation results in MATLAB/Simulink validate the effectiveness of the proposed topology at different modes.