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In order to lower the cost and expand the working range of pulsewidth modulation (PWM)-inverter-fed interior permanent magnet synchronous motor drives, the control methods under the overmodulation mode with only a dc-link current sensor are investigated. The space vector modulation of the PWM inverter is analyzed in detail, and an adjustment scheme for the reference voltage vectors is developed to...
In this paper, torque control scheme for PMSM when an inverter operates in the overmodulation range is proposed and examined. The torque control system has our proposed closed-loop current control system, which harmonic current compensation scheme is used to improve the stability in the overmodulation range. Finally, the overall torque control performance will be evaluated by the experimental results.
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