发明授权
- 专利标题： PWM control in the pulse dropping region
- 专利标题（中）： PWM控制在脉冲下降区域
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申请号： US589846申请日： 1990-09-28
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公开(公告)号： US5121043A公开(公告)日： 1992-06-09
- 发明人: Russel J. Kerkman , Brian J. Seibel , David Leggate
- 申请人： Russel J. Kerkman , Brian J. Seibel , David Leggate
- 申请人地址： WI Milwaukee
- 专利权人： Allen-Bradley Company, Inc.
- 当前专利权人： Allen-Bradley Company, Inc.
- 当前专利权人地址： WI Milwaukee
- 主分类号： H02M7/5387
- IPC分类号： H02M7/5387 ; H02P27/08
摘要：
An open loop, volts/hertz motor drive for control of an induction motor adjusts the voltage command to a sine-triangle PWM inverter to compensate for reduction in PWM inverter gain and to compensate for variations in DC bus voltage in the pulse dropping transition region between PWM operation and six-step operation. The drive includes a microelectronic processor interfaces to DC bus voltage sensing circuitry and to the PWM inverter.
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