发明名称 |
Motor speed control method and apparatus with drooping compensation independent of acceleration or deceleration current and time constant of motor |
摘要 |
A speed control method and apparatus for a motor driven by output of a power conversion unit, wherein a first current command value is inputted to derive a drooping variable, a deviation between a detected speed value of the motor and a speed command value is derived, the first current command value is derived on the basis of a value obtained by compensating the deviation with the drooping variable, the speed command value is inputted to derive an acceleration or deceleration current value for accelerating or decelerating the motor, and the first current command value and the acceleration or deceleration current value are added together to derive a second current command value and control the output current of the power conversion unit on the basis of the second current command value.
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申请公布号 |
US5256944(A) |
申请公布日期 |
1993.10.26 |
申请号 |
US19910757049 |
申请日期 |
1991.09.09 |
申请人 |
HITACHI, LTD.;KAWASAKI STEEL CORPORATION |
发明人 |
TOBISE, MASAHIRO;SHIMIZU, ITSUO;YAMASAWA, YUJI;CHINO, TOSHIHIKO |
分类号 |
H02P7/06;B21B37/46;H02P7/285;H02P21/00;H02P27/04;(IPC1-7):H02F7/00 |
主分类号 |
H02P7/06 |
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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