| 四川茂县水电群孤网运行电压控制 |
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| 引用本文： | 蒲倩,张毅威,陆秋瑜,胡伟,陈磊,李健,周剑,庞晓艳. 四川茂县水电群孤网运行电压控制[J]. 中国电力, 2012, 45(2): 5-8. DOI: 10.11930/j.issn.1004-9649.2012.2.5.3 |
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| 作者姓名： | 蒲倩 张毅威 陆秋瑜 胡伟 陈磊 李健 周剑 庞晓艳 |
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| 作者单位： | 1. 清华大学 电机系 电力系统国家重点实验室,北京 100084; 2.四川省电力公司,四川 成都 610041 |
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| 摘 要： | 水电群通过长距离超高压通道送电,大扰动后与电网解列而形成水电群孤网,孤网可能产生高压现象。基于四川茂县水电群的实际情况,对孤网高压问题进行研究,分析其主要成因,讨论利用发电机进相运行能力解决问题的可行性,提出了通过发电机励磁控制的方法,充分而合理地利用发电机进相能力,安全、有效地控制水电群孤网电压。
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| 关 键 词： | 水电群孤网 运行控制 发电机进相运行 励磁控制 |
| 收稿时间： | 2011-08-30 |
| 修稿时间： | 2011-12-10 |
Voltage control for the isolated operation of Maoxian electric grid in Sichuan province |
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| PU Qian , ZHANG Yi-wei , LU Qiu-yu , HU Wei , CHEN Lei , LI Jian , ZHOU Jian , PANG Xiao-yan. Voltage control for the isolated operation of Maoxian electric grid in Sichuan province[J]. Electric Power, 2012, 45(2): 5-8. DOI: 10.11930/j.issn.1004-9649.2012.2.5.3 |
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| Authors: | PU Qian ZHANG Yi-wei LU Qiu-yu HU Wei CHEN Lei LI Jian ZHOU Jian PANG Xiao-yan |
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| Affiliation: | 1. State Key Lab. of Power Systems, Tsinghua University,Beijing 100084, China; 2. Sichuan Electric Power Corporation, Chengdu 610041, China |
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| Abstract: | After a large disturbance,the hydropower group connected to main system through a long distance and extra-high voltage power line may split from the system and turn into isolated operation.Over-voltage phenomenon may occur in the isolated network.Based on the actual case of Maoxian hydropower group in Sichuan province,the problem of over-voltage control in the isolated network is studied.The major causes of over-voltage are analyzed and the feasibility of over-voltage suppression by generator leading phase operation is discussed.Methods to adequately and reasonably utilize generator’s leading phase operation capability through excitation control of generator are proposed to control isolated system voltage safely and effectively. |
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| Keywords: | hydropower isolated network operation control generator’s leading phase operation excitation control |
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