| 开关磁阻电动机互感特性及其对转矩的影响 |
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| 引用本文： | 曲兵妮,宋建成. 开关磁阻电动机互感特性及其对转矩的影响[J]. 电机与控制学报, 2009, 13(3) |
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| 作者姓名： | 曲兵妮 宋建成 |
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| 作者单位： | 太原理工大学,信息工程学院,山西,太原,030024;太原理工大学电气与动力工程学院,山西,太原,030024 |
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| 基金项目： | 国家科技支撑计划，太原市科技局项目 |
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| 摘 要： | 开关磁阻电动机在两相励磁的工作条件下,定转子轭部磁场高度饱和使每相磁链有所减小.通过引入互感的方法可以定量计算磁链的减小量,并给出了互感计算式,利用有限元法分析了一台样机互感随转子位置和电流的变化规律,理论推导了互感对平均转矩影响的程度,研究了四相8/6极开关磁阻电动机稳态转矩波形在两种绕组连接方式下的不规则特性,结合互感特性,提出了改变不对称相绕组参数的技术方案.研究结果表明:电磁参数优化后,开关磁阻电动机的最小转矩和平均转矩均得以提高,转矩脉动减小,转矩波形规则.
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| 关 键 词： | 开关磁阻电动机 互感 长磁路 短磁路 两相励磁 转矩 |
Mutual inductance of switched reluctance motor and its effect on torque |
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| QU Bing-ni,SONG Jian-cheng. Mutual inductance of switched reluctance motor and its effect on torque[J]. Electric Machines and Control, 2009, 13(3) |
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| Authors: | QU Bing-ni SONG Jian-cheng |
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| Affiliation: | 1.College of Information Engineering;Taiyuan University of Technology;Taiyuan 030024;China;2.College of Electrical and Power Engineering;China |
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| Abstract: | When the switched reluctance motors operate in two phase excitation mode,the phase flux linkage will be reduced due to the high magnetic saturation in the stator and the rotor yoke.The reduction can be quantitatively calculated through mutual inductance.The computation expression of mutual inductance was proposed.The variation of mutual inductance with regard to rotor position and phase current was analyzed by finite element analysis for a prototype motor.The influence of mutual inductance on average torque... |
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| Keywords: | switched reluctance motors mutual inductance long-flux-path short-flux-path two-phase excitation torque |
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