A novel DC-rail parallel resonant ZVT VSI for three-phase AC motor drive

Author

Zhengfeng, Ming ; Yanru, Zhong ; Sun Xiangdong ; Hongping, MO

Author_Institution

Xi´´an Univ. of Technol., China

Volume

1

fYear

2001

fDate

2001

Firstpage

492

Abstract

This paper proposes a novel circuit of DC-rail parallel resonant zero voltage transition voltage-source inverter (DC-Rail PR ZVT VSI) for three-phase motor drive. In this circuit all switches are turned on or turned off under the zero voltage switching (ZVS) or zero current switching (ZCS) without high stress of voltage and current. Power ratings of the resonant components and auxiliary switches required are small. The control scheme is simple and less dependant on load current This paper gives details of the theoretical analysis, the rules of selecting the auxiliary switches and the commutation components and the control strategy of the proposed circuits. Finally, the validity and the efficiency of the circuit are tested and verified by experiment results. Some questions in practical application are discussed

Keywords

AC motor drives; commutation; invertors; switching circuits; DC-rail parallel resonant ZVT VSI; ZCS; ZVS; commutation components; control strategy; load current; power ratings; resonant components; switches; three-phase motor drive; zero current switching; zero voltage switching; zero voltage transition; AC motors; Circuit testing; Inverters; Motor drives; RLC circuits; Resonance; Switches; Switching circuits; Zero current switching; Zero voltage switching;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Machines and Systems, 2001. ICEMS 2001. Proceedings of the Fifth International Conference on

Conference_Location

Shenyang

Print_ISBN

7-5062-5115-9

Type

conf

DOI

10.1109/ICEMS.2001.970719

Filename

970719