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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.
The transient and steady state operations of a closed loop variable speed 6-pulse PWM inverter-fed permanent magnet synchronous motor [PMSM] drive system are simulated. Performance of the system covering important operational aspects while using a hysteresis controller or a modified predictive current controller were evaluated over a wide range of speed. Comparison of the results provide insight into...
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