| 基于任意参考坐标系的异步电动机功率分析 |
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| 引用本文： | 孟明,许镇琳.基于任意参考坐标系的异步电动机功率分析[J].天津大学学报(自然科学与工程技术版),2006,39(Z1):362-365. |
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| 作者姓名： | 孟明 许镇琳 |
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| 作者单位： | 华北电力大学电气工程学院 保定071003(孟明)，天津大学电气与自动化工程学院 天津300072(许镇琳) |
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| 基金项目： | 华北电力大学博士学位教师科研基金． |
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| 摘 要： | 根据机电能量转换原理和坐标变换理论,分析了异步电动机在任意参考坐标系中的功率平衡关系。推导了功率表达式,阐明了参考坐标系功率的物理意义和特性．分析表明,坐标变换不影响功率平衡关系,参考坐标系功率是由定子传递到转子的功率和转子从定子吸收的功率构成的,其值恒等于零；同时也证明坐标变换使变压器电动势和运动电动势的作用实现了解耦,而转子磁场定向使转子变压嚣电动势和运动电动势实现了解耦．
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| 关 键 词： | 异步电动机 机电能量转换 功率平衡 坐标变换 参考坐标系功率 |
| 文章编号： | 0493-2137(2006)增刊-0362-04 |
| 修稿时间： | 2005年4月21日 |
Analysis of the Powers in Asynchronous Motors Based on Arbitrary Reference Frame |
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| MENG Ming XU Zhen-lin .School of Electrical Engineering,North China Electric Power University,Baoding ,China, .School of Electrical and Automation Engineering,Tianjin University,Tianjin ,China.Analysis of the Powers in Asynchronous Motors Based on Arbitrary Reference Frame[J].Journal of Tianjin University(Science and Technology),2006,39(Z1):362-365. |
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| Authors: | MENG Ming XU Zhen-lin School of Electrical Engineering North China Electric Power University Baoding China School of Electrical and Automation Engineering Tianjin University Tianjin China |
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| Institution: | MENG Ming~1 XU Zhen-lin~2 1.School of Electrical Engineering,North China Electric Power University,Baoding 071003,China, 2.School of Electrical and Automation Engineering,Tianjin University,Tianjin 300072,China |
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| Abstract: | According to the principle of electromechanical energy conversion and reference frame transformation theory,the power balance of an asynchronous motor in arbitrary reference frame is analyzed and the power ex- pressions are derived.The physical meaning and characteristic of reference frame power are illustrated in detail. The analysis shows that the reference frame transformation doesn't affect the power balance and the reference frame power,which is the sum of the powers converted from stator to rotor and absorbed by rotor,is zero con- stantly.In the meantime,it is proved that the functions of transformer electromotive force and motional electro- motive force are decoupled by reference frame transformation.The transformer electromotive force and motionsl electromotive force in rotor are decoupled by rotor field orientation. |
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| Keywords: | asynchronous motor electromechanical energy conversion power balance reference frame transformation reference frame power |
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