发明名称 |
Inverter speed control unit. |
摘要 |
<p>In a speed control unit for a PWM inverter, the present invention serves to control the slowing-down length to make it constant by adjusting the slip frequency corresponding to the load torque supplied as a result of detecting the load current at a constant speed and, during slow down, adding a voltage (30) corresponding to the amount (32) of the adjusted slip frequency without having to change the adjusted amount.</p> |
申请公布号 |
EP0335599(A2) |
申请公布日期 |
1989.10.04 |
申请号 |
EP19890302919 |
申请日期 |
1989.03.23 |
申请人 |
OTIS ELEVATOR COMPANY |
发明人 |
DOI, KAZUHIKO;YAMADA, KOJI |
分类号 |
B66B1/28;H02M5/458;H02P3/18;H02P23/00;H02P27/06;H02P27/08 |
主分类号 |
B66B1/28 |
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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