发明名称 |
SYSTEM AND METHOD OF ROTOR TIME CONSTANT ONLINE IDENTIFICATION IN AN AC INDUCTION MACHINE |
摘要 |
A system and method for determining a rotor time constant of an AC induction machine is disclosed. During operation of the induction motor, a flux signal is injected into a rotor flux command so as to generate a time-variant rotor flux. A voltage-current flux observer determines amplitudes of rotor flux variations resulting from the time-variant rotor flux, with the amplitudes of the rotor flux variations comprising an amplitude of a rotor flux variation based on a current model of the voltage-current flux observer and an amplitude of a rotor flux variation based on a combined voltage-current model of the voltage-current flux observer. A rotor time constant of the induction motor is then estimated based on the determined amplitudes of the rotor flux variations. |
申请公布号 |
WO2014209742(A2) |
申请公布日期 |
2014.12.31 |
申请号 |
WO2014US43151 |
申请日期 |
2014.06.19 |
申请人 |
EATON CORPORATION |
发明人 |
WANG, KAI;YAO, WENXI;LI, HUAQIANG;LU, ZHENGYU |
分类号 |
H02P21/00 |
主分类号 |
H02P21/00 |
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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