Stator flux oriented control of a cascaded doubly-fed induction machine

Author

Hopfensperger, B. ; Atkinson, D.J. ; Lakin, R.A.

Author_Institution

Siemens plc, Congleton, UK

Volume

146

Issue

6

fYear

1999

fDate

11/1/1999 12:00:00 AM

Firstpage

597

Lastpage

605

Abstract

A cascaded doubly-fed induction machine (CDFM) is a connection of two wound rotor induction machines. In comparison to a single doubly-fed induction machine (SDFM), brushes are obsolete. Due to developments in brushless doubly-fed machine design, there is a renewed interest in associated control. Theoretical and experimental studies of a stator flux oriented control method for a CDFM are presented. The use of vector control principles to control torque, speed, active and reactive power is investigated. It is found that the additional closed rotor circuit of the CDFM introduces a cross coupling between the d-axis and the q-axis. Nevertheless, the cross coupling effect remains small in relation to the overall control concept so that the control of the CDFM resembles that of the SDFM

Keywords

angular velocity control; brushless machines; induction motors; machine vector control; magnetic flux; magnetic variables control; reactive power control; rotors; stators; torque control; active power control; brushless doubly-fed machine design; cascaded doubly-fed induction machine; closed rotor circuit; cross coupling effect; d-axis; q-axis; reactive power control; single doubly-fed induction machine; speed control; stator flux oriented control; torque control; vector control principles; wound rotor induction machines;

fLanguage

English

Journal_Title

Electric Power Applications, IEE Proceedings -

Publisher

iet

ISSN

1350-2352

Type

jour

DOI

10.1049/ip-epa:19990590

Filename

820085