发明名称 |
Device and method for estimating the resistance of a stator winding for an AC induction motor |
摘要 |
A device and method to estimate the resistance of a stator winding of an AC induction motor is provided. The device includes an AC induction circuit connecting one phase of the AC induction motor to an AC source. The circuit includes a resistor and a switch connected in parallel. The switch is alternatively closed during the half cycles of the AC current supplied to the motor so as to inject a DC voltage and current bias to the AC motor. The resistance of the stator winding is estimated in response to the DC voltage and current bias.
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申请公布号 |
US6621291(B2) |
申请公布日期 |
2003.09.16 |
申请号 |
US20010929990 |
申请日期 |
2001.08.15 |
申请人 |
EATON CORPORATION |
发明人 |
LEE SANG-BIN;HABETLER THOMAS G.;GRITTER DAVID J. |
分类号 |
G01R31/06;(IPC1-7):G01R31/34 |
主分类号 |
G01R31/06 |
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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