| 水斗式水轮机特性对系统运行稳定性的影响 |
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| 引用本文： | 李玲,杨建东,杨桀彬.水斗式水轮机特性对系统运行稳定性的影响[J].人民长江,2010,41(1):69-73. |
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| 作者姓名： | 李玲 杨建东 杨桀彬 |
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| 作者单位： | 武汉大学,水资源与水电工程科学国家重点实验室,湖北,武汉,430072 |
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| 摘 要： | 冲击式水电站的运行稳定性成为目前日益关注的问题。从理论上研究了水斗式水轮机特性对水电站运行稳定性的影响。首先在理想PI调速器、刚性水击、单管单机条件下,加入自由出流方程,求解出计入水斗式水轮机特性的小波动稳定判别式。然后结合水斗式水轮机的运行特点,建立目标函数,经分析,得出了水斗式水轮机在等出力变幅时的小波动最不稳定区,并用数值计算对其加以验证。最后提出,对于多喷嘴水斗式水轮机来说,应根据不同的喷嘴个数情况,分别作稳定校核计算。
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| 关 键 词： | 水斗式水轮机 稳定性 多喷嘴 水电站运行 |
Influence of pelton turbine's characteristics on operation stability |
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| LI Ling,YANG Jiandong,YANG Jiebin.Influence of pelton turbine's characteristics on operation stability[J].Yangtze River,2010,41(1):69-73. |
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| Authors: | LI Ling YANG Jiandong YANG Jiebin |
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| Affiliation: | LI Ling,YANG Ji,ong,YANG Jiebin(State Key Laboratory of Water Resources , Hydropower Engineering Sciences,Wuhan University,Wuhan 430072,China) |
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| Abstract: | The operation stability of the hydropower station euipped with pelton turbine is increasingly concerned.We theoretically studied the influence of pelton turbine's characteristics on operation stability of the station.Under the conditions of ideal PI governors,rigid water hammer,single-pipe and single-unit,and using free outflow equation,the discriminant of small fluctuation stability with consideration of pelton turbine's characteristics is deduced.Considering the pelton turbine's operation features,the obj... |
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| Keywords: | pelton turbine stability multi-nozzle hydropower station operation |
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