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US5569994A Method and apparatus for sensorless control of permanent-magnet synchronous motors 失效
永磁同步电机无传感器控制方法及装置

Method and apparatus for sensorless control of permanent-magnet
synchronous motors
摘要:
A method of estimating and controlling rotor position and velocity for a multi-phase brushless permanent-magnet motor by measuring only the stator phase currents at a high sampling rate. Measurements of the stator phase currents are used to obtain estimates of rotor position and velocity. In turn, these estimates are used to determine an amount of voltage to apply to each stator phase so as to obtain a desired regulation of rotor position or velocity, or to command rotor position or velocity to follow a desired trajectory.
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