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This paper presents a fault ride through method for use when open circuit winding faults appear on an induction motor drive. A feed forward compensation term is introduced into the zero sequence component of the dq reference voltages which considerably reduces current and torque ripple in the faulted motor drive. If the machine's ldquoneutral pointrdquo voltage can be modulated, then a reasonably...
An induction motor model based on the per-phase equivalent circuit is used to simulate operation with an open circuit fault. The model considers both spatial field harmonics as well as saturation effects to correctly model the motor's behaviour under faulty conditions, where the non-linearities may produce problematic torque pulsations due to the unbalanced nature of the winding distribution. A model...
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