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

Citation data:

Journal of Power Electronics

Publication Year:
2011
Usage 1
Abstract Views 1
Repository URL:
https://epublications.marquette.edu/electric_fac/259; http://manuscript.jpels.org/LTKPSWeb/pub/pubissue.aspx?puseq=48
Author(s):
Ahmed, Ahmed Mohamed Sayed; Demerdash, Nabeel
Publisher(s):
Korean Institute of Power Electronics; e-Publications@Marquette
Tags:
Delta-connected motors; Fault mitigation; Fault-tolerant motor-drive systems; Robust control; Open-loop control; Computer Engineering; Electrical and Computer Engineering; Engineering
article description
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.