| 抽水蓄能机组背靠背启动中跳闸技术改造方案 |
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| 引用本文： | 常永亮,张兵海,王勇,何忠华.抽水蓄能机组背靠背启动中跳闸技术改造方案[J].水力发电,2011,37(7). |
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| 作者姓名： | 常永亮 张兵海 王勇 何忠华 |
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| 作者单位： | 1. 河北省电力研究院,河北石家庄,050021
2. 河北张河湾蓄能发电有限责任公司,河北井陉,050300 |
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| 摘 要： | 针对抽水蓄能机组在背靠背拖动过程中若发生电气或机械故障跳闸,当跳开拖动机组和被拖动机组的灭磁开关的时间差过大时,会在启动回路中产生很大的短路电流,引起继电保护误动作,严重时会损毁启动回路的电气设备,提出一种抽水蓄能机组背靠背跳闸技术改造方案,通过在机组保护系统中添加“跳相邻机组单元”接点,与“跳本机组”接点同时动作,达到同时跳开拖动和被拖动机组灭磁开关的目的.技术改造后的试验证明了方案的正确性和有效性.
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| 关 键 词： | 抽水蓄能机组 背靠背启动 故障跳闸 技术改造方案 |
Transformation on the Fault Trip during Back-to-back Starting of Pumped-storage Power Station |
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| Chang Yongliang,Zhang Binghai,Wang Yong,He Zhonghua.Transformation on the Fault Trip during Back-to-back Starting of Pumped-storage Power Station[J].Water Power,2011,37(7). |
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| Authors: | Chang Yongliang Zhang Binghai Wang Yong He Zhonghua |
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| Affiliation: | Chang Yongliang1,Zhang Binghai1,Wang Yong2,He Zhonghua2(1.Hebei Power Research Institute,Shijiazhuang 050021,Hebei,China,2.Hebei Zhanghewan Pumped-storage Power Station Co.,Ltd,Jingxing 050300,Heibei,China) |
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| Abstract: | When the trip is occurred during the back-to-back starting of pumped-storage units as electrical or mechanical faults and there is a larger time difference between the field breaking switches,the large short-circuit current will be generated in the starting circuits and leads to the malfunction of relay protection,even to damage the electrical equipments of starting circuit in a severe condition.A trip transformation was presented for the back-to-back starting of pumped-storage units,in which,the contact of... |
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| Keywords: | pumped-storage unit back-to-back starting fault trip transformation program |
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