| 基于MATLAB仿真的发电机阻尼绕组负面影响研究 |
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| 引用本文： | 向秋风,王晖.基于MATLAB仿真的发电机阻尼绕组负面影响研究[J].长沙理工大学学报(自然科学版),2006,3(2):53-57. |
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| 作者姓名： | 向秋风 王晖 |
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| 作者单位： | 长沙理工大学,电气与信息工程学院,湖南,长沙,410076 |
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| 摘 要： | 发电机阻尼绕组的设计理念是为了提高电力系统的动态稳定性,但在超高压、远距离、大电网系统中,发电机阻尼绕组对提高动态稳定性方面的作用不明显.基于MATLAB-S im Power System s的动态仿真结果,从空载情形的发电机机端三相短路、机端相间短路和发电机所连线路远处三相短路的角度,讨论了发电机阻尼绕组对电力系统的负面影响,仿真结果证实了阻尼绕组不仅会导致短路电流幅值成倍地增大,而且会给电力系统带来高次谐波.
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| 关 键 词： | 阻尼绕组 大机组 |
| 文章编号： | 1672-9331（2006）02-0053-05 |
| 收稿时间： | 2005-10-24 |
| 修稿时间： | 2005年10月24 |
Dynamic simulation using MATLAB for overall evaluation of negative impact of the damper winding of a generator |
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| XIANG Qiu-feng,WANG Hui.Dynamic simulation using MATLAB for overall evaluation of negative impact of the damper winding of a generator[J].Journal of Changsha University of Science and Technology:Natural Science,2006,3(2):53-57. |
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| Authors: | XIANG Qiu-feng WANG Hui |
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| Institution: | College of Electrical and Information Engineering, Changshn University of Science and Technology, Changsha 410076, China |
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| Abstract: | The design of the damper winding of a generator was developed in order to increase dynamic stability of power systems.However,in a large power system with high voltage and long distance,the effect of damper winding of a generator on the dynamic stability is not apparent.Based on some results from the dynamic simulation using MATLAB-Sim power systems,the negative impact of the damper winding of a generator on power systems was analyzed by describing symmetrical fault,line-to-line fault at unloaded synchronous machines and symmetrical fault at consumers remoted from synchronous machines.The results show that short-circuit currents may be several orders of magnitude larger than normal operating currents due to the damper winding,and the damper winding may cause harmonics to power systems. |
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| Keywords: | MATLAB Sim Power Systems |
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