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1.发明授权公开(公告)号：US11575336B2
公开(公告)日：2023-02-07
申请号：US16428261
申请日：2019-05-31
申请人： NXP USA, Inc.
发明人： Matej Pacha , Simon Zossak , Lukas Gorel
摘要： A method and apparatus are provided for controlling a sensorless multi-phase permanent magnet (PM) motor by sensing induced motor terminal voltages from the PM motor while the rotor is spinning, generating an input voltage vector signal from the plurality of induced motor terminal voltages, projecting the input voltage vector signal to a transformed voltage vector signal which does not include DC-offset components by using a Clarke transformation without a zero component that is applied to the input voltage vector signal, and estimating an initial rotor position of the rotor from the transformed voltage vector signal, wherein said sensing, projecting, and estimating are performed while a power converter for the sensorless multi-phase PM motor is disabled.
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2.发明申请公开(公告)号：US20200382035A1
公开(公告)日：2020-12-03
申请号：US16428261
申请日：2019-05-31
申请人： NXP USA, Inc.
发明人： Matej Pacha , Simon Zossak , Lukas Gorel
摘要： A method and apparatus are provided for controlling a sensorless multi-phase permanent magnet (PM) motor by sensing induced motor terminal voltages from the PM motor while the rotor is spinning, generating an input voltage vector signal from the plurality of induced motor terminal voltages, projecting the input voltage vector signal to a transformed voltage vector signal which does not include DC-offset components by using a Clarke transformation without a zero component that is applied to the input voltage vector signal, and estimating an initial rotor position of the rotor from the transformed voltage vector signal, wherein said sensing, projecting, and estimating are performed while a power converter for the sensorless multi-phase PM motor is disabled.
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