发明名称 |
METHOD FOR REMOVING TORQUE VIBRATIONS IN AN AC MOTOR CONTROLLED BY A FREQUENCY CONVERTER |
摘要 |
Method for eliminating torque vibrations in a frequency converter controlled a.c. motor used in an elevator system. In the method, the torque vibrations are minimised on the basis of the characteristic frequency of the motor supply current and its harmonics, which are separated from a suitable vibration spectrum descriptive of the elevator properties.
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申请公布号 |
WO9929032(A1) |
申请公布日期 |
1999.06.10 |
申请号 |
WO1998FI00894 |
申请日期 |
1998.11.13 |
申请人 |
KONE CORPORATION;HAKALA, HARRI |
发明人 |
HAKALA, HARRI |
分类号 |
B66B;B66B1/30;H02P7/00;(IPC1-7):H02P7/00;H02P7/36 |
主分类号 |
B66B |
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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