发明名称 |
Variable frequency power unit controlling system. |
摘要 |
<p>A variable frequency power unit controlling system for controlling a variable frequency power unit to supply an electric current of a frequency corresponding to a desired revolving rate of an electric motor. A control signal designating the revolving rate of the electric motor is integrated by an integrating circuit and the output frequency of the variable frequency power unit is held at a predetermined value regardless of the control signal, when the change rate of the output signal of the integrating circuit deviates from a predetermined range of change rate.</p> |
申请公布号 |
EP0160787(A1) |
申请公布日期 |
1985.11.13 |
申请号 |
EP19850101510 |
申请日期 |
1985.02.13 |
申请人 |
MITSUBISHI DENKI KABUSHIKI KAISHA |
发明人 |
TAKATA, NOBIHARU C/O MITSUBISHI DENKI K.K. POWER |
分类号 |
H02J9/06;(IPC1-7):H02J9/06 |
主分类号 |
H02J9/06 |
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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