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In order to automatically identify the electrical parameters of PMSMs, rather than measure the parameters using instruments such as RLC meters, this paper proposes an approach in which the testing voltage is injected into the motor from the drive. Based on the analysis of equivalent circuits of the PMSMs as well as the phase voltage and phase current information recorded from standstill to sensorless...
A new interior permanent magnet synchronous motor (IPMSM) control method is presented for electrical vehicle drive system. Based on the differential geometry theory, the nonlinear system is changed into a linear system with input-output decoupling technique. Then, by the maximum torque per ampere (MTPA) control strategy, the output torque of the drive system is added. And then, a load torque observer...
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