Steady-state analysis of a doubly fed asynchronous machine supplied by a current-controlled cycloconvertor in the rotor

Author

Machmoum, M. ; Le Doeuff, R. ; Sargos, F.M. ; Cherkaoui, M.

Author_Institution

Lab. Atlantique de la Recheche en Genie Electrique, ESA-IGELEC, Saint Nazaire, France

Volume

139

Issue

2

fYear

1992

fDate

3/1/1992 12:00:00 AM

Firstpage

114

Lastpage

122

Abstract

The authors deal with a doubly fed asynchronous machine (DFAM) supplied by a current-controlled cycloconvertor (CCC) at the rotor, and AC mains at the stator. A microprocessor is used to achieve control of the system by magnitude, frequency or phase shift of the output currents of the cycloconvertor. It also ensures the bank selection process. The mathematical model of the DFAM presented is based on a vectorial representation. Steady-state analysis of the CCC-fed DFAM has been carried out in the synchronous reference frame, and expressions of various output variables are developed. Performances of the drive are determined analytically. After theoretical analysis, the effect of the control parameters is investigated. Experimental results obtained show a good correlation with analytical predictions

Keywords

asynchronous machines; cycloconvertors; electric current control; machine control; AC mains; current frequency control; current phase-shift control; current-controlled cycloconvertor; doubly fed asynchronous machine; microprocessor-based control; rotor; stator; steady-state analysis; synchronous reference frame;

fLanguage

English

Journal_Title

Electric Power Applications, IEE Proceedings B

Publisher

iet

ISSN

0143-7038

Type

jour

Filename

121773