| 汽轮发电机励磁绕组不同位置匝间短路对励磁磁动势的影响 |
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| 引用本文： | 侯纪勇,李和明,李俊卿,王红宇,胡笳. 汽轮发电机励磁绕组不同位置匝间短路对励磁磁动势的影响[J]. 中国电机工程学报, 2011, 31(27) |
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| 作者姓名： | 侯纪勇 李和明 李俊卿 王红宇 胡笳 |
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| 作者单位： | 1. 华北电力大学电气与电子工程学院,北京市昌平区,102206
2. 中国电力国际有限公司,北京市海淀区,100080 |
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| 基金项目： | 高等学校博士学科点专项科研基金资助项目(20060079007); 河北省自然科学基金(08B005E2010001705)~~ |
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| 摘 要： | 为了研究汽轮发电机励磁绕组不同位置匝问短路故障时的磁场特性，将各个励磁线圈产生的矩形波磁动势进行傅里叶分解，利用傅里叶级数法获得了汽轮发电机励磁绕组正常和匝间短路时励磁磁动势表达式。据此得到了励磁绕组正常和不同位置短路3．75％时的励磁磁动势波形，结果表明：励磁绕组匝问短路时励磁磁动势畸变位置与短路所处空间位置角相对应；节距小的线圈比节距大的线圈短路引起的磁场不平衡程度明显；发生短路的励磁线圈节距越大，励磁磁动势基波幅值越小，从节距小的线圈到节距大的线圈分别短路时励磁磁动势出现的2次谐波幅值先变大后越小；实验分支电压频谱与励磁磁动势表达式的分析一致。
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| 关 键 词： | 励磁磁动势 励磁绕组短路 不同位置故障 汽轮 发电机 |
Influence on Field Magnetic Motive Force of Turbo-generator With Field Winding Inter-turn Short Circuits at Different Position |
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| HOU Jiyong,LI Heming,LI Junqing,WANG Hongyu,HU Jia. Influence on Field Magnetic Motive Force of Turbo-generator With Field Winding Inter-turn Short Circuits at Different Position[J]. Proceedings of the CSEE, 2011, 31(27) |
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| Authors: | HOU Jiyong LI Heming LI Junqing WANG Hongyu HU Jia |
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| Affiliation: | HOU Jiyong1,LI Heming1,LI Junqing1,WANG Hongyu1,HU Jia2(1.School of Electrical and Electronic Engineering,North China Electric Power University,Changping District,Beijing 102206,China,2.China Power International Holding Limited,Haidian District,Beijing 100080,China) |
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| Abstract: | In order to analyze the field feature of the field winding different position inter-turn short circuits,the expression for magnetic motive force(MMF) analysis of multi-polar turbo-generator with normal and inter-turn short circuits field windings was obtained based on each field coil's MMF Fourier decomposition.Based on the formula,the MMF waves of normal and field windings short circuits 3.75% at different positions were obtained,which shown that,firstly,there are one-to-one correspondence between distorti... |
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| Keywords: | magnetic motive force field winding inter-turn short circuits different positions fault turbo-generator |
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