A new hybrid C-dump and buck-fronted converter for switched reluctance motors

Author

Tseng, King-Jet ; Cao, Shuyu ; Wang, Jijiu

Author_Institution

Sch. of Electr. & Electron. Eng., Nanyang Technol. Inst., Singapore

Volume

47

Issue

6

fYear

2000

fDate

12/1/2000 12:00:00 AM

Firstpage

1228

Lastpage

1236

Abstract

This paper presents an experimentally verified single-pulse-operation switched reluctance motor converter topology based on the basic buck-fronted topology and the modified C-dump topology. Using only (n+1) power switches, this topology is able to achieve full single-pulse operation, thereby reducing switching losses and acoustic noise. It also achieves a greater demagnetizing voltage compared to the basic buck-fronted topology, without having to increase the DC-source voltage. The converter is more robust as its dump capacitor stops being charged if the chopper switch fails. The principle of operation, modes of operation, transient simulation results, and experimental results are presented.

Keywords

acoustic noise; choppers (circuits); demagnetisation; losses; noise abatement; power convertors; reluctance motors; DC-source voltage; acoustic noise reduction; buck-fronted converter; chopper switch failure; demagnetizing voltage; hybrid C-dump converter; operation; power switches; single-pulse-operation; switched reluctance motors; switching losses reduction; transient simulation; Acoustic noise; Capacitors; Demagnetization; Noise robustness; Reluctance motors; Switches; Switching converters; Switching loss; Topology; Voltage;

fLanguage

English

Journal_Title

Industrial Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0278-0046

Type

jour

DOI

10.1109/41.887950

Filename

887950