发明名称 |
Alternating-current motor control apparatus |
摘要 |
An alternating-current motor control apparatus includes a stator frequency computing unit configured to compute a stator frequency of a motor magnetic flux; a torque error computing unit configured to compute a torque error by using the motor magnetic flux, an estimated current, and a motor current; and a speed estimator configured to estimate a speed of the alternating-current motor by using the stator frequency and the torque error. The speed estimator includes a proportional controller configured to reduce the torque error to zero, and an adaptive filter configured to eliminate a high-frequency component of the torque error. |
申请公布号 |
EP2169820(B1) |
申请公布日期 |
2010.12.29 |
申请号 |
EP20090169168 |
申请日期 |
2009.09.01 |
申请人 |
KABUSHIKI KAISHA YASKAWA DENKI |
发明人 |
IDE, KOZO;SATO, SADAYUKI;IURA, HIDEAKI;MORIMOTO, SHINYA |
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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