发明名称 |
Wechselvorrichtung und Verfahren zum Reduzieren der Geschwindigkeit eines Wechselstrommotors |
摘要 |
There is provided an inverter capable of reducing a speed in a short period of time without generating an overcurrent even in a case of an alternating current motor which is easy to be saturated magnetically. A frequency of driving a motor is calculated by using a detecting value constituted by passing a direct current bus line voltage through a first filter portion, a voltage command is corrected by using a detecting value passing through a second filter portion, by making a time constant of the second filter portion larger than a time constant of the first filter portion in reducing a speed, the motor is brought into an overexcited state and loss is brought about in the motor. |
申请公布号 |
DE112005001561(T5) |
申请公布日期 |
2007.05.24 |
申请号 |
DE20051101561 |
申请日期 |
2005.07.01 |
申请人 |
KABUSHIKI KAISHA YASKAWA DENKI, KITAKYUSHU |
发明人 |
IURA, HIDEAKI;HIRAMATSU, KAZUHIKO |
分类号 |
H02P3/18 |
主分类号 |
H02P3/18 |
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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