| 小浪底水电厂励磁系统双桥切换问题分析 |
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| 引用本文： | 李宪栋,刘连军,刘春奇,沙林. 小浪底水电厂励磁系统双桥切换问题分析[J]. 大电机技术, 2010, 0(1) |
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| 作者姓名： | 李宪栋 刘连军 刘春奇 沙林 |
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| 作者单位： | 小浪底水力发电厂,河南,济源,454681;小浪底水力发电厂,河南,济源,454681;小浪底水力发电厂,河南,济源,454681;小浪底水力发电厂,河南,济源,454681 |
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| 摘 要： | 对小浪底水电厂励磁系统运行过程中出现的失磁和过压现象,结合励磁系统可控硅整流桥的切换控制过程进行了分析,认为切换过程中继电器等元件动作不可靠是导致这些现象产生的原因。针对励磁系统双桥单向切换运行中存在设备利用率不高和系统可靠性降低的不足,提出了双向切换的改进思路和对策,并对故障复位条件提出了改进建议。
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| 关 键 词： | 小浪底水电厂 励磁系统 双桥切换 |
Analysis on Thyristor Bridge Switch in Excitation System at Xiaolangdi Hydropower Plant |
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| LI Xian-dong,LIU Lian-jun,LIU Chun-qi,SHA Lin. Analysis on Thyristor Bridge Switch in Excitation System at Xiaolangdi Hydropower Plant[J]. Large Electric Machine and Hydraulic Turbine, 2010, 0(1) |
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| Authors: | LI Xian-dong LIU Lian-jun LIU Chun-qi SHA Lin |
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| Affiliation: | Xiaolangdi Hydropower Plant;Jiyuan 454681;China |
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| Abstract: | Based on changeover control process, overvoltage and excitation loss during excitation system operation at Xiaolangdi Hydropower Plant are analyzed, and conclusion is drew that abnormal work of element such as relay in excitation system results in this phenomenon. Thyristor bridge unidirectional switch will not make full use of system equipment, also reduces reliability of system. Bidirectional switch mode is produced, suggestions on improving system equipment wok time are also given. |
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| Keywords: | Xiaolangdi hydropower plant excitation system bidirectional switch |
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