定子绕组匝间短路对发电机电磁转矩特性的影响

Abstract
Figure/Table
References
Related Citation (15)

Download: PDF (2114 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract Based on the field-circuit coupled principle,the finite element mathematics model fully considering generator electromagnetic saturation,pole shape,and slot effect is built in this paper.The electromagnetic torque before and after the short-circuit fault in the synchronous generator stator winding is calculated by the Maxwell’s tensor method.The strong fundamental frequency and double fundamental frequency electromagnetic torques are found by analyzing the electromagnetic torque spectrum after the stator short-circuit fault.Furthermore,the change rules of the fundamental frequency and double frequency electromagnetic torques in the transient process and the double frequency electromagnetic torque in the steady state along with the short-circuit fault turns and position are revealed.The results are important for diagnosis and detection of the short-circuit faults within synchronous generator stators.

Key words： Generator short-circuit fault electromagnetic torque field-circuit coupled Maxwell’s tensor method

Received: 13 April 2015 Published: 16 March 2016

PACS:

TM315

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	Zhao Hongsen
	Ge Baojun
	Tao Dajun
	Wen Ruxin
	Xing Guang

Cite this article:

Zhao Hongsen,Ge Baojun,Tao Dajun等. Influence of Stator Winding Inter-Turn Short-Circuit Fault on Generator Electromagnetic Torque Characteristics[J]. Transactions of China Electrotechnical Society, 2016, 31(5): 192-198.

URL:

https://dgjsxb.ces-transaction.com/EN/ OR https://dgjsxb.ces-transaction.com/EN/Y2016/V31/I5/192

[1] 屠黎明,胡敏强,肖仕武,等.发电机定子绕组内部故障分析方法[J].电力系统自动化,2001,26(10):47-52.
Tu Liming,Hu Minqiang,Xiao Shiwu,et al.Reasear methods of the generator with internal armature fault[J].Power System and Automation,2001,26(10):47-52.
[2] 高仕红.同步发电机突然三相短路的仿真研究[J].湖北民族学院学报:自然科学版,2008,26(1):36-40.
Gao Shihong.Simulation study of synchronous generation on sudden three-phase short circuit[J].Journal of Hubei Institute for Nationalities(Natural Science Edition),2008,26(1):36-40.
[3] 夏长亮,方红伟,金雪峰,等.同步发电机定子绕组内部故障数值分析[J].中国电机工程学报,2006,26(10):124-129.
Xia Changliang,Fang Hongwei,Jin Xuefeng,et al.Numerical analysis of stator wingding fault in synchronous generator[J].Proceedings of the CSEE,2006,26(10):124-129.
[4] Megahed A I,Malik O P.Simulation of internal faults in synchronous generator[J].IEEE Transactions on Energy Conversion,1999,14(4):1306-1311.
[5] 胡敏强,屠黎明,林鹤云,等.水轮发电机定子绕组内部故障稳态电量仿真及其规律探讨[J].中国电机工程学报,1999,5(19):3-8.
Hu Minqiang,Tu Liming,Lin Heyun,et al.Simulation and invertigation of the internal armature wingding fault of the hydro-generator[J].Proceedings of the CSEE,1999,5(19):3-8.
[6] Bi Daqiang,Wang Xiangheng,Wang Weijian,et al.Improved transient simulation of salient-pole synchronous generators with internal and ground faults in the stator wingding[J].IEEE Transactions on Energy Conversion,2005,20(1):128-134.
[7] 魏书荣,马宏忠.基于多回路理论的同步发电机定子绕组内部故障仿真的谐波分析[J].电力自动化设备,2008,28(4):32-36.
Wei Shurong,Ma Hongzhong.Harmonic analysis of synchronous generator stator wingding internal fault simulation based on multi-loop theory[J].Electric Power Automation Equipment,2008,28(4):32-36.
[8] 胡敏强,屠黎明,吴济安,等.大型水轮发电机内部故障单元件横差保护的灵敏度分析[J].中国电机工程学报,1999,19(11):32-36.
Hu Minqiang,Tu Liming,Wu Ji’an,et al.Sensitiry analysis of the single-element transverse different protection for large-sized hydro-generator with internal armature wingding fault[J].Proceedings of the CSEE,1999,19(11):32-36.
[9] 许伯强,王祥珩,毕大强,等.基于多回路-有限元耦合数学模型的同步发电机定子单相接地故障保护方案校验方法[J].中国电机工程学报,2005,9(25):84-89.
Xu Boqiang,Wang Xiangheng,Bi Daqiang,et al.Protection scheme checkout of stator ground fault in synchronous generator based on MLM-FEM coupled mathematical model[J].Proceedings of the CSEE,2005,9(25):84-89.
[10]邱家俊.电机的机电耦联与磁固耦合非线性振动研究[J].中国电机工程学报,2002,22(5):109-115.
Qiu Jiajun.Investigation on coupled mechanical and electrical vibration and coupled magnetical and solid vibration of electrical machine[J].Proceedings of the CSEE,2002,22(5):109-115.
[11]万书亭,李和明,许兆风,等.定子绕组匝间短路对发电机定转子径向振动特性的影响[J].中国电机工程学报,2004,24(4):157-161.
Wan Shuting,Li Heming,Xu Zhaofeng,et al.Analysis of generator vibration characteristic on stator winding inter-turn short circuit fault[J].Proceedings of the CSEE,2004,24(4):157-161.
[12]Dunfiled J C,Barton T H.Effect of MMF and permanence harmonics in electrical machine[J].Proceedings of IEE,1967,114(10):1443-1450.
[13]Wang Xiangheng,Lok L.New development of torque analysis of synchronous machine[J].Electric Machines and Powers Systems,1997,25(8):827-838.
[14]方红伟,夏长亮,修杰,等.定子绕组匝间短路时发电机电磁转矩分析[J].中国电机工程学报,2007,27(15):83-87.
Fang Hongwei,Xia Changliang,Xiu Jie,et al.Anslysis of generator electro-magnetic torque on armature winding inter-turn short circuit fault[J].Proceedings of the CSEE,2007,27(1):83-87.
[15]孙宇光,王祥珩,桂林,等.场路耦合法计算同步发电机定子绕组内部故障的暂态过程[J].中国电机工程学报,2004,24(1):136-141.
Sun Yuguang,Wang Xiangheng,Gui Lin,et al.Transient calculation of stator’s internal faults in synchronous generator using FEM coupled with multi-loop method[J].Proceedings of the CSEE,2004,24(1):136-141.
[16]高景德,王祥珩,李发海.交流电机及其系统分析[M].北京:清华大学出版社,1994.
[17]汤蕴璆,梁艳萍.电机电磁场的分析与计算[M].北京:机械工业出版社,2010.
[18]康锦萍,李志强,刘晓芳,等.汽轮发电机电磁转矩计算方法的对比[J].电工技术学报,2009,24(9):38-43.
Kang Jinping,Li Zhiqiang,Liu Xiaofang,et al.Comparison of calculation methods of electromagnetic torque for turbo-generators[J].Transactions of China Electrotechnical Society,2009,24(9):38-43.