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31.
公开(公告)号:US06417644B2
公开(公告)日:2002-07-09
申请号:US09844795
申请日:2001-04-27
申请人: Peter W. Hammond , Mukul Rastogi
发明人: Peter W. Hammond , Mukul Rastogi
IPC分类号: H02P318
CPC分类号: H02P3/18
摘要: A device and control method to produce braking torque counter to motor rotation. A converter supplies multiple frequency AC power to the motor. A first frequency is supplied at the normal operating frequency/speed. A second frequency, different from the normal operating frequency, is supplied to produce braking torque. The level of braking can be controlled to generally consume some or all of the braking in the device or motor. More than one braking frequency may be utilized. In addition, the relationship between the normal and braking frequency(s) can be maintained to limit motor pulsation.
摘要翻译: 一种产生与电机旋转相反的制动力矩的装置和控制方法。 A转换器为电机提供多路交流电源。 以正常工作频率/速度提供第一频率。 提供与正常工作频率不同的第二频率以产生制动转矩。 可以控制制动水平,以便通常消耗装置或电动机中的一些或全部制动。 可以使用多于一个的制动频率。 此外,可以保持正常和制动频率之间的关系以限制电动机的脉动。