System for use in controlling motor torque

DRIVE January 16, 2013
Source
An electric drive system (200) includes a motor (215) operatively coupled to a power conversion assembly (210) and to an electric power source (205). The electric drive system also includes a motor control system (100). The motor control system includes a memory device (110) configured to store a plurality of operational measurements of at least one of the electric power source, the power conversion assembly, and the motor. Each operational measurement is associated with power transfer from the electric power source to the motor via the power conversion assembly. The motor control system also includes a processor (115) coupled in communication with the memory device. The processor programmed to calculate a power output limit of the power conversion assembly, and limit power output of the power converter by limiting the torque (230) induced by the motor as a function of a speed of the motor.

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