Performance improvement of Adjustable Speed Drives (ASD's) using supercapacitors during voltage sag


Voltage unbalance or sag conditions generated by the power system faults can have a significant negative impact on the ASD's (Adjustable Speed Drives) performance. Significant input current unbalances, injection of second harmonics voltage component on the DC-Link and torque pulsations of double the fundamental frequency are the major effects, which may be… (More)


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