公开(公告)号：US5977741A

公开(公告)日：1999-11-02

申请号：US193773

申请日：1998-11-17

申请人： Robert J. DeLange ,  David J. Cisler

发明人： Robert J. DeLange ,  David J. Cisler

IPC分类号： H02P7/628

摘要： A method and apparatus for minimizing motor instability under no load conditions, the method including identifying instability by comparing consecutive current half cycle periods and, where the difference between half cycle periods is sufficiently large, determining that instability exists and modifying controller modulating waveforms by reducing waveform magnitude until stability is achieved. Preferably the apparatus for achieving stability includes only a single current zero crossing sensor to minimize hardware costs.

摘要翻译： 一种用于在无负载条件下最小化电机不稳定性的方法和装置，所述方法包括通过比较连续的当前半周期周期来识别不稳定性，并且其中半周期周期之间的差足够大以确定存在不稳定性并且通过减少波形来修改控制器调制波形 达到稳定。 优选地，用于实现稳定性的装置仅包括单个电流过零传感器以最小化硬件成本。