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When permanent magnet synchronous motors (PMSMs) are driven in the ultra-high-speed region, it is necessary to shorten the control period because of the increase in the motor fundamental frequency. Reducing calculation amounts of drive system control for shorter control period is easily applied to applications because it requires simply changing the control software. This paper proposes a calculation...
This paper proposes a compensation method of stator flux estimation error for direct torque control in a rotating M-T reference frame which is synchronized with the stator flux-linkage vector. The flux estimation in the M-T frame is based on the integral of the flux error generated by stator flux controller, and no sensor is required to measure the motor terminal voltage. The conventional estimation...
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