| 谈交流电动机的恒功率因数控制 |
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| 引用本文： | 龙瑜,邓克尼.谈交流电动机的恒功率因数控制[J].中国农机化,2006(2):70-72. |
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| 作者姓名： | 龙瑜 邓克尼 |
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| 作者单位： | 1. 湖南生物机电职业技术学院
2. 湖南农业大学食品科技学院,410128,长沙市 |
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| 摘 要： | 对交流电动机的功率因数进行负反馈控制可使其功率因数恒定。通过对交流电动机稳态数学模型的分析可知,最优效率对应的功率因数由转差频率控制,且电动机功率因数在小范围内变化时所引起效率变化小。因此,可以用恒功率因数控制替代最优功率因数控制。
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| 关 键 词： | 交流电动机 恒功率因数 转差频率 最优效率 |
| 文章编号： | 1006-7205（2006）02-0070-03 |
| 收稿时间： | 2005-07-07 |
| 修稿时间： | 2005年7月7日 |
Studying the Controlling on the Constant - Power Factor of AC Motor |
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| LONG Yu,DENG Ke-ni.Studying the Controlling on the Constant - Power Factor of AC Motor[J].Chinese Agricul Tural Mechanization,2006(2):70-72. |
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| Authors: | LONG Yu DENG Ke-ni |
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| Institution: | 1.Hunan Polytechnic of Biology and Electromechahie, Changsha, 410126, China; 2.College of Food science and Technology, Changsha, 410128, China |
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| Abstract: | The power factor of AC motor is controlled by reverse feedback until it becomes iavanedy. Through analyzing the constant digital models of AC motor, there is a corresponding between the perfect efficiency and the rotating of power factor. Constant-power factor, in fact, is controlled by the rotating angle-frequency of AC motor. When the power of AC motor Varies in a little scale, it only cause few varieties in efficiency. So, the constant-power factor can take place of the controlling of perfect power factor. |
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| Keywords: | AC motor constant-power factor rotating angle-frequency perfect efficiency |
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