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 |
CA1235734(A) |
申请公布日期 |
1988.04.26 |
申请号 |
CA19850474032 |
申请日期 |
1985.02.11 |
申请人 |
MITSUBISHI DENKI KABUSHIKI KAISHA |
发明人 |
TAKATA, NOBUHARU |
分类号 |
H02J9/06;(IPC1-7):H02J9/06;H02P7/62 |
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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