A novel soft switching inverter for BLDCM EV propulsion system

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Abstract

A novel Zero Voltage Transition (ZVT) parallel resonant DC link Voltage Source Inverter (VSI) is proposed for Brushless DC Machine (BLDCM) Electric Vehicle (EV) propulsion system. The presented soft-switching inverter is constructed from the conventional one by simply augmenting auxiliary resonant DC link, and the soft switching is easily achieved by suitable controlling of the auxiliary switch. The Zero Voltage Switching (ZVS) operation for all switching devices in inverter has been achieved both for motoring and braking state. The DC link voltage is clamped to power voltage. Control of resonance is based on time sequence without testing any current or voltage, so Pulse Width Modulation (PWM) control is simple. The operation principle and control scheme of inverter are analyzed. Computer simulation results reveal good performance.

Original languageEnglish
Title of host publicationICIEA 2007
Subtitle of host publication2007 Second IEEE Conference on Industrial Electronics and Applications
Pages332-336
Number of pages5
DOIs
StatePublished - 2007
Event2007 2nd IEEE Conference on Industrial Electronics and Applications, ICIEA 2007 - Harbin, China
Duration: 23 May 200725 May 2007

Publication series

NameICIEA 2007: 2007 Second IEEE Conference on Industrial Electronics and Applications

Conference

Conference2007 2nd IEEE Conference on Industrial Electronics and Applications, ICIEA 2007
Country/TerritoryChina
CityHarbin
Period23/05/0725/05/07

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