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This paper presents a new start-up method from standstill to a sensorless control for surface permanent magnet synchronous motor (SPMSM). To estimate the rotor position of SPMSM from the measured induced voltage, a DC current adds to the motor and nonlinear observer is introduced to the motor torque equation while the motor is vibrating. To achieve the start-up smoothly, first order induced voltage...
This paper presents a new estimation method of rotor position to achieve a position sensorless control for surface permanent magnet synchronous motor. DC current adds to SPMSM and nonlinear observer is applied to the torque equation to estimate the rotor position from the induced voltage while the motor is vibrating. When the error of the measured and calculated induced voltage is converged, the estimated...
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