发明名称 |
Rotor position estimator for an electrical machine |
摘要 |
A method for estimating a rotor position in an electrical machine is provided. The method is applicable to electrical machines that have magnetic saliency. The method includes extracting the rotor position from a demodulated output signal generated in response to an injected high frequency carrier signal and determining a position error compensation based upon a demodulation delay and a velocity or rotational frequency of the electrical machine. The method also includes estimating the rotor position by applying the position error compensation to the extracted rotor position. |
申请公布号 |
US8159168(B2) |
申请公布日期 |
2012.04.17 |
申请号 |
US20090474861 |
申请日期 |
2009.05.29 |
申请人 |
LIU JINGBO;NONDAHL THOMAS;SCHMIDT PETER B.;ROYAK SEMYON;HARBAUGH MARK H.;ROCKWELL AUTOMATION TECHNOLOGIES, INC. |
发明人 |
LIU JINGBO;NONDAHL THOMAS;SCHMIDT PETER B.;ROYAK SEMYON;HARBAUGH MARK H. |
分类号 |
H02P6/00;H02P1/04 |
主分类号 |
H02P6/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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