发明名称 |
Induction motor controller |
摘要 |
The invention is an induction motor controller for measuring electrical constants of a polyphase induction motor (102) by supplying test power thereto and controlling driving of the polyphase induction motor with a polyphase inverter (105) by using parameters for controlling driving of a result of the measurement. This controller has a first computing means (106) for computing secondary winding resistance R2 as well as leakage inductance L corresponding to each of test conditions provided with test power having three different frequencies f; a second computing means (107) for obtaining a rational function by substituting the secondary winding resistance R2 as well as leakage inductance L corresponding to each of the test conditions in the rational function including a quadratic equation of a frequency f with the secondary winding resistance R2 as a denominator and the leakage inductance L as a numerator and computing the secondary winding resistance R2 as well as leakage inductance L by substituting a desired secondary slip frequency in this obtained rational function. <IMAGE> |
申请公布号 |
HK1016361(A1) |
申请公布日期 |
2007.07.06 |
申请号 |
HK19990101363 |
申请日期 |
1999.04.07 |
申请人 |
MITSUBISHI DENKI KABUSHIKI KAISHA |
发明人 |
TOSHIYUKI KAITANI;TETUAKI NAGANO;AKIRA IMANAKA;YASUHIRO SHIRAISHI |
分类号 |
H02P;G01R;H02P21/00;H02P21/14;H02P23/08;H02P27/08 |
主分类号 |
H02P |
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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