Fractional Delay Adjustment in a Field-Oriented Control Architecture
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United States of America Patent
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Issued Date -
Oct 6, 2016
app pub date -
Mar 31, 2015
filing date -
Mar 31, 2015
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Abandoned
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Abstract
A motor controller architecture and method of operating the same. The motor controller includes a function for selecting a fractional delay compensation value to be applied in the estimate of rotor position for which pulse-width-modulated drive signals are to be applied to a multi-phase electric motor. The motor is operated over iterated trial values of fractional delay time, while monitoring a magnitude of a feedback signal in the control loop. The selected fractional delay time is that having a lowest magnitude of the monitored feedback signal.
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