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.
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申请公布号 |
US2010301790(A1) |
申请公布日期 |
2010.12.02 |
申请号 |
US20090474861 |
申请日期 |
2009.05.29 |
申请人 |
ROCKWELL AUTOMATION TECHNOLOGIES, INC. |
发明人 |
LIU JINGBO;NONDAHL THOMAS;SCHMIDT PETER B.;ROYAK SEMYON;HARBAUGH MARK M. |
分类号 |
H02P6/18 |
主分类号 |
H02P6/18 |
代理机构 |
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代理人 |
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地址 |
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