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Apparatus and method for determining whether motor lock error occurs in sensorless motor
Apparatus and method for determining whether motor lock error occurs in sensorless motor
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机译:用于确定无传感器电动机中是否发生电动机锁定错误的设备和方法
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摘要
An apparatus and method for determining the presence or absence in a motor lock error in a sensorless motor. The method includes the steps of: driving the sensorless motor; determining whether or not a predetermined time elapses after the sensorless motor has been driven; measuring a current applied to the sensorless motor after the lapse of the predetermined time; calculating a difference between the measured current with a predetermined reference current; and determining the presence or absence of a motor lock error in the sensorless motor by determining whether the determined difference is equal to or higher than a predetermined reference difference, so that it quickly determines the presence or absence of a motor lock error in the sensorless motor without using a sensor and prevents an overcurrent from flowing in the sensorless motor, resulting in the prevention of a faulty operation or damage to the sensorless motor.
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