发明授权
US06417644B2 Apparatus and method to generate braking torque in an AC drive 有权
在交流变频器中产生制动转矩的装置和方法

  • 专利标题: Apparatus and method to generate braking torque in an AC drive
  • 专利标题(中): 在交流变频器中产生制动转矩的装置和方法
  • 申请号: US09844795
    申请日: 2001-04-27
  • 公开(公告)号: US06417644B2
    公开(公告)日: 2002-07-09
  • 发明人: Peter W. HammondMukul Rastogi
  • 申请人: Peter W. HammondMukul Rastogi
  • 主分类号: H02P318
  • IPC分类号: H02P318
Apparatus and method to generate braking torque in an AC drive
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.
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