New approach to field orientation control of a CSI induction motor drive

Author

Jie Zhang ; Thiagarajan, V. ; Grant, T. ; Barton, T.H.

Author_Institution

Dept. of Electr. Eng., Calgary Univ., Alta., Canada

Volume

135

Issue

1

fYear

1988

fDate

1/1/1988 12:00:00 AM

Firstpage

1

Lastpage

7

Abstract

An improved approach to the field orientation control of a CSI-IM drive is developed using a microprocessor based system. The primary current variables in the synchronous reference frame are acquired directly from the DC-link current and the phase angle of the stator current. Flux position estimation is performed by feedback of the primary currents. This substantially reduces the matrix coordinate transformations and simplifies the control strategy. An innovation in the positioning control of the stator current vector is provided by a binary gating pattern in combination with a real-time interrupt technique. A new control scheme, incorporating a nonlinear current controller, has been developed. The analysis and control scheme are verified by experimental results

Keywords

electric drives; electrical engineering computing; induction motors; invertors; magnetic variables control; CSI induction motor drive; DC-link current; binary gating pattern; control strategy; current source invertor; feedback; field orientation control; flux position estimation; matrix coordinate transformations; nonlinear current controller; phase angle; primary current variables; real-time interrupt technique; stator current; stator current vector; synchronous reference frame;

fLanguage

English

Journal_Title

Electric Power Applications, IEE Proceedings B

Publisher

iet

ISSN

0143-7038

Type

jour

Filename

7632