Electricity: motive power systems – Induction motor systems
Reexamination Certificate
2011-04-26
2011-04-26
Duda, Rina I (Department: 2837)
Electricity: motive power systems
Induction motor systems
C318S400030, C318S400150
Reexamination Certificate
active
07932691
ABSTRACT:
Methods and apparatus are provided for startup of a permanent magnet alternating current (AC) motor. The method comprises the steps of detecting startup of the permanent magnet AC motor; detecting a mechanical oscillation of the permanent magnet AC motor when startup of the permanent magnet AC motor is detected; and, in response to detection of the mechanical oscillation of the permanent magnet AC motor when startup is detected, suppressing the mechanical oscillation of the permanent magnet AC motor.
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Shinnaka, S. “A New Current-Ratio-Oriented Simple Vector Control Method for Starting Up Sensorless Drive of Permanent-Magnet Synchronous Motors—Feedback Control of Effective Reactive Currents Based on “MIR Strategy”,” Conference Record of the 41st Annual meeting—IEEE Transactions on Industry Applications Conference, 2006, pp. 2054-2061, vol. 4.
Bae Bon Ho
Milani Michael
Son Yo Chan
Duda Rina I
GM Global Technology Operations LLC
Ingrassia Fisher & Lorenz P.C.
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