A novel C-dump inverter for reduction of negative torque due to mutual inductance of VRM

Author

An, Young-Joo ; Joe, Cheol-Je ; Hwang, Young-Moon

Author_Institution

Pusan Nat. Univ., South Korea

fYear

1993

fDate

15-16 Jul 1993

Firstpage

45

Lastpage

50

Abstract

This study describes the influence of the mutual inductance between the adjacent phase windings of variable reluctance motor (VRM) and presents a new type of inverter for reduction of such influence. In this inverter topology, an additional power switch is used as compared with the conventional C-dump inverter circuit, hence unwanted negative torque produced by the mutual inductance in the winding next to the energizing phase is remarkably reduced. Such circuits result in an increase of the average torque and contribute to the improvement of overall drive efficiency. Theoretical prediction is verified by experimental results obtained with the integration of presented inverter and protype 6/4 VRM

Keywords

electric drives; invertors; machine windings; reluctance motors; switching circuits; torque; C-dump inverter; average torque; drive efficiency; energizing phase; mutual inductance; negative torque; phase windings; power switch; variable reluctance motor; Commutation; Inductance; Pulse width modulation inverters; Reluctance machines; Reluctance motors; Rotors; Stator windings; Switching circuits; Torque; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Motion Control Proceedings, 1993., Asia-Pacific Workshop on Advances in

Print_ISBN

0-7803-1223-6

Type

conf

DOI

10.1109/APWAM.1993.316185

Filename

316185