发明授权
- 专利标题： Method and apparatus for stability control of open loop motor drive operation
- 专利标题（中）： 开环电机驱动运行稳定性控制方法及装置
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申请号： US14193329申请日： 2014-02-28
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公开(公告)号： US09287812B2公开(公告)日： 2016-03-15
- 发明人: Thomas Nondahl , Jingbo Liu , Peter Schmidt , Semyon Royak , Timothy M. Rowan
- 申请人： Thomas Nondahl , Jingbo Liu , Peter Schmidt , Semyon Royak , Timothy M. Rowan
- 申请人地址： US OH Mayfield Heights
- 专利权人： Rockwell Automation Technologies, Inc.
- 当前专利权人： Rockwell Automation Technologies, Inc.
- 当前专利权人地址： US OH Mayfield Heights
- 代理机构： Fay Sharpe LLP
- 主分类号： H02P6/08
- IPC分类号： H02P6/08 ; H02P21/00
摘要：
Motor drives and control methods are presented for sensorless motor speed control in which inverter output currents are sampled from the inverter output and a frequency modulation value is determined based on the current feedback. A speed or frequency setpoint is adjusted at least partially according to the frequency modulation value to provide an adjusted frequency or speed setpoint value that is then used in controlling the inverter to provide stability control to mitigate hunting or motor stoppage.
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