Title

Control of Open-Loop PWM Delta-Connected Motor-Drive Systems under One Phase Failure Condition

Document Type

Article

Language

eng

Format of Original

16 p.

Publication Date

11-2011

Publisher

Korean Institute of Power Electronics

Source Publication

Journal of Power Electronics

Source ISSN

1598-2092

Abstract

A new fault-tolerant control topology for open-loop motor-drive systems with Delta-connected stator windings is introduced in this paper. This new control topology enables the operation of a three-phase induction machine as a two-phase machine fed by a three-phase inverter upon a failure in one of the motor phases. This topology utilizes the “open-Delta” configuration to independently control the current in each of the two remaining healthy phases. This new control technique leads to the alleviation of any torque pulsations resulting from the consequences of the asymmetrical conditions associated with this class of faults.

Comments

Journal of Power Electronics, Vol. 11, No. 6 (November 2011): 824-839. Permalink.

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