| Frequency control system based on power factor control of asynchronous motor |
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| 作者姓名： | 孟庆春 杨飞霞 任志玲 |
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| 作者单位： | Electrical Department, Liaoning Technical University, Fuxin 123000, China |
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| 基金项目： | Supported by Liaoning Educational Foundation（202183386） |
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| 摘 要： | Deduced the relationship between the power factor （PF） and the angular frequency according to the simplified equivalent circuit of asynchronous motor, forming a power factor auto-control system. An anti-interference circuit was also introduced in the middle voltage link of inverter to avoid the shift of the optimum PF point caused by the change of the load and the reliable run of the control system was assured. The experiment results show that it has a good self-adaptation in the whole scope of speed adjustment and an obvious economization on energy while it runs under load.
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| 关 键 词： | 异步电机 节能 功率因数 频率控制系统 自动控制 |
Frequency control system based on power factor control of asynchronous motor |
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| MENG Qing-chun , YANG Fei-xia , REN Zhi-ling.Frequency control system based on power factor control of asynchronous motor[J].Journal of Coal Science & Engineering(China),2005,11(2):86-89. |
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| Authors: | MENG Qing-chun YANG Fei-xia REN Zhi-ling |
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| Abstract: | Deduced the relationship between the power factor (PF) and the angular fre-quency according to the simplified equivalent circuit of asynchronous motor, forming a power factor auto-control system. An anti-interference circuit was also introduced in the middle voltage link of inverter to avoid the shift of the optimum PF point caused by the change of the load and the reliable run of the control system was assured. The experi-ment results show that it has a good self-adaptation in the whole scope of speed ad-justment and an obvious economization on energy while it runs under load. |
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| Keywords: | asynchronous motor power factor(PF) auto-control economization on en-ergy |
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