Title :
Remedial strategy for inverter-induction machine system faults using two-phase operation
Author :
Elch-Heb, T. ; Hautier, J.P.
Author_Institution :
Lab. d´´Electrotechnique et d´´Electronique de Puissance de Lille, Ecole des Mines de Douai, France
Abstract :
The authors present an optimal remedial strategy for inverter-three phase induction machine system drive faults. Remedial strategy can be a single-phase operation when the neutral point of a star coupled induction machine is not connected, and is a two-phase operation when the neutral point is connected to a DC source voltage of a current controlled inverter. In this case the ripple component, which is unavoidable in single-phase operation, can be suppressed when current references are π/3 shifted. This optimal two-phase operation mode can be used to perform field oriented control as in three-phase operation. Obtained performances with two-phase operation are then similar to those of the three-phase model
Keywords :
electric current control; electric drives; electrical faults; induction motors; invertors; machine control; optimal control; current control; faults; field oriented control; induction motor drives; invertors; machine control; neutral point; optimal control; performances; remedial strategy; ripple component; two-phase operation;
Conference_Titel :
Power Electronics and Applications, 1993., Fifth European Conference on
Conference_Location :
Brighton
