| 一次复杂的直流线路故障分析 |
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| 引用本文： | 朱韬析,王超.一次复杂的直流线路故障分析[J].电力系统自动化,2011,35(13):103-107. |
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| 作者姓名： | 朱韬析 王超 |
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| 作者单位： | 1. 南方电网超高压输电公司广州局,广东省广州市,510405
2. 浙江电力调度通信中心,浙江省杭州市,310007 |
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| 摘 要： | 在某直流输电系统发生的一次线路故障中,因连续雷击的影响,造成直流线路过电压保护、阀组差动保护、交直流碰线保护、桥差保护、50 Hz保护等多个保护动作.文中根据相关直流控制保护功能的原理,结合故障录波,对该事故的过程进行了详细分析,并深入分析了产生直流线路过电压的原因及影响.提出了重视换流阀及其控制系统与直流保护的配合、...
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| 关 键 词： | 高压直流输电 线路故障 直流保护 直流过电压 换流阀特性 |
| 收稿时间： | 2010/12/7 0:00:00 |
| 修稿时间： | 6/12/2011 6:37:34 PM |
Analysis on Complicated DC Line Fault of HVDC |
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| ZHU Taoxi,WANG Chao.Analysis on Complicated DC Line Fault of HVDC[J].Automation of Electric Power Systems,2011,35(13):103-107. |
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| Authors: | ZHU Taoxi WANG Chao |
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| Affiliation: | 1.CSG EHV Power Transmission Company,Guangzhou 510405,China;2.Zhejiang Electric Power Dispatch and Communication Center,Hangzhou 310007,China) |
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| Abstract: | A complicated DC line fault of high voltage direct current(HVDC) is analyzed.During this DC line fault,the continuous lightning strikes resulted to action of several protections such as: DC line over-voltage protection,valve group differential protection,AC/DC conductor contact protection,bridge differential protection and 50 Hz protection,etc.In accordance with protection function principle of DC control concerned and fault records,a detailed analysis on the fault process is carried out.Furthermore,the improving suggestions such as: study on reason and influence of DC line over-voltage,attach importance to the coordination of thyristor valve and its control system with the DC protection,properly improve the logic of the open HSNBS,etc are put forward. |
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| Keywords: | high voltage direct current(HVDC) transmission line fault DC protection DC over-voltage characteristics of thyristor valve |
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