Accurate digital current control of the reluctance synchronous machine with constant current angle

Author

Fick, PD ; Kamper, MJ

Author_Institution

Dept. of Electr. & Electron. Eng., Stellenbosch Univ., South Africa

Volume

2

fYear

2002

fDate

2-4 Oct. 2002

Firstpage

685

Abstract

Constant current angle controlled reluctance synchronous machine drives can be considered as near optimum efficiency controlled drives. This paper describes an accurate constant current-angle current-control technique for a digital controlled reluctance synchronous machine (RSM) drive. Using finite element calculated results accurate decoupled dq current regulators are designed and used in a digital controlled system using the TMS320F240-DSP. In the design of the controller the effect of dynamic inductances, due to saturation and cross magnetisation, on the performance of the PI-controllers is taken into account. Complete analysis, digital simulation and measured results are presented.

Keywords

digital control; digital signal processing chips; electric current control; finite element analysis; machine control; magnetisation; reluctance motor drives; two-term control; PI-controllers; TMS320F240-DSP; constant current angle; controller design; cross magnetisation; decoupled dq current regulators; digital current control; drives; finite element calculated results; near optimum efficiency; reluctance synchronous machine; Control systems; Couplings; Current control; Digital control; Electromagnetic modeling; Finite element methods; Magnetization; Pulse width modulation; Synchronous machines; Voltage control;

fLanguage

English

Publisher

ieee

Conference_Titel

Africon Conference in Africa, 2002. IEEE AFRICON. 6th

Print_ISBN

0-7803-7570-X

Type

conf

DOI

10.1109/AFRCON.2002.1159995

Filename

1159995