发明授权
- 专利标题: Harmonic torque ripple reduction at low motor speeds
- 专利标题(中): 低电机转速下的谐波转矩脉动降低
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申请号: US12108868申请日: 2008-04-24
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公开(公告)号: US07768220B2公开(公告)日: 2010-08-03
- 发明人: Steven E. Schulz , Goro Tamai , Silva Hiti
- 申请人: Steven E. Schulz , Goro Tamai , Silva Hiti
- 申请人地址: US MI Detroit
- 专利权人: GM Global Technology Operations, Inc.
- 当前专利权人: GM Global Technology Operations, Inc.
- 当前专利权人地址: US MI Detroit
- 代理机构: Ingrassia Fisher & Lorenz, P.C.
- 主分类号: H02P6/10
- IPC分类号: H02P6/10
摘要:
Methods and systems are provided for reducing torque ripple in an electric motor. A method comprises receiving a torque command and determining a cancellation current command based on the torque command. The method further comprises generating a harmonic cancellation command based on the cancellation current command, wherein the harmonic cancellation command compensates for a phase shift and an attenuation introduced by a current regulated control module coupled to an inverter coupled to the electric motor. The method further comprises providing the harmonic cancellation command to the current regulated control module, wherein the current regulated control module is configured to control the inverter in response to the harmonic cancellation command and the torque command.
公开/授权文献
- US20090267555A1 HARMONIC TORQUE RIPPLE REDUCTION AT LOW MOTOR SPEEDS 公开/授权日:2009-10-29
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