Simplified control of switched reluctance machines for AC generation

Author

Lopez, R.G. ; Diong, B.

Author_Institution

Dept. of Electr. & Comput. Eng., Texas Univ., El Paso, TX, USA

Volume

1

fYear

2004

Abstract

The switched reluctance machine, typically used as a motor, has recently been investigated for use as a DC generator and also as an AC generator. But existing control schemes for AC generation with only one power conversion stage (a cycloconverter) require complex computations and correspondingly sophisticated (digital) circuitry to implement them. This paper describes a simplified scheme for controlling such a machine paired with a cycloconverter to produce single-phase AC voltage. Firstly, polynomial approximations of the solutions to those differential equations governing the combined system´s behavior were determined in order to simplify their computation. Then interpolations were used to simplify the calculation of the required switching device firing angles from the approximate solutions. Test results from a lab prototype confirm the speed and effectiveness of this novel simplified control scheme.

Keywords

AC generators; DC generators; cycloconvertors; differential equations; machine control; polynomial approximation; reluctance machines; AC generation control; DC generator; cycloconverter; differential equations; polynomial approximations; single-phase AC voltage; switched reluctance machine control; AC generators; AC motors; Circuits; DC generators; DC motors; Power conversion; Power generation; Reluctance generators; Reluctance machines; Reluctance motors;

fLanguage

English

Publisher

ieee

Conference_Titel

Industry Applications Conference, 2004. 39th IAS Annual Meeting. Conference Record of the 2004 IEEE

ISSN

0197-2618

Print_ISBN

0-7803-8486-5

Type

conf

DOI

10.1109/IAS.2004.1348440

Filename

1348440