This paper proposes a new voltage compensation method for the optimal control of interior permanent magnet machines (IPMs)especially at the field-weakening region considering the inverter nonlinearity. The way to experimentally generate the inverter voltage drop compensation is presented. In the model-based optimal control, the compensation voltage should be converted to $dq$ frame, therefore becomes a multivariable function of current vector magnitude, $dq$ angle, and electrical angle of rotor rotation, which complicates the solving process of optimal control problem. This paper proposes a compensation voltage which is a function of only current magnitude and also ensures that the optimal operation is always achieved. Simulation and experiment results are presented to validate the proposed method.
Improved Optimal Control of Interior Permanent Magnet Synchronous Machine with Simplified Inverter Nonlinearity Compensation
2019-06-01
1242658 byte
Conference paper
Electronic Resource
English
Optimal Control Strategy for High Performance EV Interior Permanent Magnet Synchronous Motor
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