| 应用数字式波形回放系统分析“5·5”兴安直流输电线路闭锁故障 |
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| 引用本文： | 黄佳胤,周红阳,余江,赵曼勇,杨晋柏.应用数字式波形回放系统分析“5·5”兴安直流输电线路闭锁故障[J].广东电力,2009,22(1):70-73. |
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| 作者姓名： | 黄佳胤 周红阳 余江 赵曼勇 杨晋柏 |
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| 作者单位： | 中国南方电网有限责任公司,电力调度通信中心,广东,510620 |
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| 摘 要： | 介绍了2008年5月5日兴安直流输电线路双极闭锁故障的详细过程，应用数字式波形回放系统分析了故障过程中直流保护的动作行为，认为兴安直流输电线路与接地极线路同时遭受雷击是造成直流双极闭锁的原因，现场巡线结果验证了该结论的正确性。根据分析结果，提出并采取了同时调整接地极线路电流不平衡保护在直流单极大地运行模式和双极运行模式下的逻辑参数的措施。
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| 关 键 词： | 高压直流 直流线路保护 波形回放 故障分析 |
Applying Digital Wave Replay System for Research on "5.5" Xingren-Baoan HVDC Fault |
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| HUANG Jia-yin,ZHOU Hong-yang,YU Jiang,ZHAO Man-yong,YANG Jin-bai.Applying Digital Wave Replay System for Research on "5.5" Xingren-Baoan HVDC Fault[J].Guangdong Electric Power,2009,22(1):70-73. |
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| Authors: | HUANG Jia-yin ZHOU Hong-yang YU Jiang ZHAO Man-yong YANG Jin-bai |
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| Affiliation: | (CSG Power Dispatching ＆ Communication Center, Guangzhou 510620, China) |
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| Abstract: | The process of Xingren-Baoan HVDC fault on May 5, 2008 is introduced and the behavior of DC protection is analyzed in detail by using digital wave replay system. It is proposed, which is validated by DC-line patrol, that lightning strike on both the DC-line and the earth electrode line causes the Xingren-Baoan HVDC fault. Based on result of analysis, the measure of simultaneously regulating the logic parameters of current imbalance protection of earth electrode line under DC monopolar ground operation mode and bipolar operation mode is presented and adopted. |
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| Keywords: | HVDC protection of DC line wave replay fault analysis |
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