Technical solutions are described for controlling operation of an electric machine such as a permanent magnet synchronous motor (PMSM) drive or motor control system to protect against excessive machine current or voltage in a PMSM drive. Systems and methods employ a torque control algorithm for PMSMs that uses the constraints of both machine current and voltage capability in PMSM drives, and online torque command modification according to the maximum allowed torque under these machine current and voltage constraints.
POWER MANAGEMENT OF PERMANENT MAGNET SYNCHRONOUS MOTOR (PMSM) DRIVE USING MACHINE CURRENT LIMITING
2021-05-27
Patent
Electronic Resource
English
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