Soft-switched quasi-Z-source inverter-fed permanent magnet synchronous machine for hybrid/electric vehicle applications

Abstract : The switching frequency of power converters is increasingly high to reduce the size of passive elements and improve the dynamic performance of electric power-train in hybrid/electric vehicle applications. Thus, the development of soft-switching technology devices has taken an accelerated pace. This paper introduces a novel soft switching bidirectional quasi-Z-source inverter (QZSI). By using a resonant capacitor and coupled inductors, the proposed QZSI topology provides a solution to hard-switching problems for variable speed electric drives for hybrid/electric vehicle applications. A soft switching topology is presented, which aims at reducing active devices switching stresses as well as mastering the slew rate dv/dt that have an adverse effect over the motor/generator windings. The effectiveness of the proposed topology has been analytically studied and simulated in Matlab/Simulink and the results have been validated by experiment for both propulsion (motoring) and braking (generating) modes on the laboratory test bench.
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Contributor : Françoise Bertrand <>
Submitted on : Thursday, September 14, 2017 - 3:38:12 PM
Last modification on : Monday, March 18, 2019 - 12:06:03 PM

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A. Battiston, E. H. Miliani, Serge Pierfederici, Farid Meibody-Tabar. Soft-switched quasi-Z-source inverter-fed permanent magnet synchronous machine for hybrid/electric vehicle applications. European Power Electronics and Drives Journal, Taylor & Francis, 2017, 27 (2), pp.85 - 96. ⟨10.1080/09398368.2017.1317135⟩. ⟨hal-01587684⟩

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