发明名称 |
Method of controlling a torque ripple of a motor having interior permanent magnets and a controller using the same method |
摘要 |
Torque ripples of a motor having interior permanent magnets can be reduced through the following method and the torque ripple controller using the same method: first, drive the motor having a plurality of phase windings and interior permanent magnets with a basic current supply circuit which outputs a basic current having a predetermined waveform, then store torque ripple waves produced in the running motor or obtained through a numerical analysis into a torque-ripple-wave-memory, next, compensate the torque ripple wave tapped off from the memory according to a prepared torque ripple compensation pattern and transform it to a torque compensation waveform with a torque-compensation-waveform-producing-circuit, further, multiply the torque compensation waveform tapped off from the waveform producing circuit by the basic current with a multiplier to output a torque ripple control current, and, supply the torque ripple control current to the plurality of phase windings shifting a phase by a predetermined electrical angle sequentially.
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申请公布号 |
US5962999(A) |
申请公布日期 |
1999.10.05 |
申请号 |
US19980126020 |
申请日期 |
1998.07.29 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL |
发明人 |
NAKAMURA, TOMOKAZU;NISHIYAMA, NORIYOSHI;IKKAI, YASUFUMI |
分类号 |
H02P6/10;(IPC1-7):H02P6/00 |
主分类号 |
H02P6/10 |
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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