| 超（特）高压输电线路差动保护电容电流补偿 |
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| 引用本文： | 徐玉琴,刘丽花,张丽.超（特）高压输电线路差动保护电容电流补偿[J].长沙水电师院学报,2007,22(2):16-20. |
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| 作者姓名： | 徐玉琴 刘丽花 张丽 |
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| 作者单位： | 华北电力大学电气工程学院,河北保定071003 |
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| 摘 要： | 在超（特）高压输电线路中接入的并联电抗器,可以适当地补偿分布电容所产生的容性电流,降低差动电流,但仍不能保证区外故障时正确动作.本文在传统的分相电流差动保护的基础上,结合电抗器的补偿作用,对传统的补偿方案进行了修正.通过ATP仿真验证,表明该方法具有较高的可靠性.
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| 关 键 词： | 特高压输电线路 并联电抗器 电流差动保护 分布电容电流补偿 |
| 文章编号： | 1673-9140（2007）02-0016-05 |
| 收稿时间： | 2007-01-10 |
Capacitor current compensating approach for current differential protection of ultra-high voltage transmission line |
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| Authors: | XU Yu-qin LIU Li-hua ZHANG Li |
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| Abstract: | The shunt reactors which are installed on the ultra-high voltage transmission lines can properly compensate distributed capacitive current and reduce differential current. Whereas, it can not guarantee correct trip of the current differential protection for outside faults. Based on traditional phase current differential protection principles, a novel compensating scheme is proposed in this paper. Simulation results with ATP show that the proposed scheme is with high reliability. |
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| Keywords: | ultra-high voltage transmission line shunt reactor current differential protection distributed capacitive current |
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