| 与长线相联的发电机自励磁仿真与实验 |
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| 引用本文： | 崔文进,陆超,夏祖华,王仲鸿,华普校,郭顺宁.与长线相联的发电机自励磁仿真与实验[J].清华大学学报(自然科学版),2002,42(9):1154-1157. |
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| 作者姓名： | 崔文进 陆超 夏祖华 王仲鸿 华普校 郭顺宁 |
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| 作者单位： | 1. 清华大学,电机工程与应用电子技术系,北京,100084
2. 青海电力设计院,西宁,810000 |
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| 摘 要： | 为了解决青海省长距离输电线路对地电容造成的末端小水电自励磁问题 ,利用 PSCAD/EMTDC软件进行了仿真 ,并进行了三机对无穷大系统的动模实验 ,两者结果基本一致。对仿真和动模实验中的各种现象进行了解释 ,总结出一些关于自励磁现象发生条件和表象形式的一般规律 ;并提出了破坏谐振参数、改善励磁、调整运行方式、改变变压器分接头等抑制自励磁的解决措施 ,是对原有自励磁理论的仿真与实验补充。
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| 关 键 词： | 自励磁 PSCAD/EMTDC软件 仿真 动模实验 |
| 文章编号： | 1000-0054(2002)09-1154-04 |
| 修稿时间： | 2001年2月19日 |
Simulation of self-excitation of generators connected to long transmission lines |
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| CUI Wenjin,LU Chao,XIA Zuhua,WANG Zhonghong,HUA Puxiao,GUO Shunning.Simulation of self-excitation of generators connected to long transmission lines[J].Journal of Tsinghua University(Science and Technology),2002,42(9):1154-1157. |
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| Authors: | CUI Wenjin LU Chao XIA Zuhua WANG Zhonghong HUA Puxiao GUO Shunning |
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| Institution: | CUI Wenjin~1,LU Chao~1,XIA Zuhua~1,WANG Zhonghong~1,HUA Puxiao~2,GUO Shunning~2 |
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| Abstract: | The significant capacitance effects of long transmission lines may cause self excitation in small generators connected to the main electric grid by such long lines in less populated areas such as western China. Numerical simulations of the Qinghai provincial grid using PSCAD/EMTDC code agreed with experimental results of a three -machines analogous system. The various phenomena were analyzed to understand the principle for self -excitation waveforms. And some measures, such as destroying the parameters of the resonance, improving the excitation system, alternation of the adapters of sub -transformers, and so on, were recommended to restraint the self -excitation waveforms via simulations and experiments. |
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| Keywords: | self -excitation PSCAD/EMTDC code simulation |
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