| 特高压换流站直流穿墙套管故障动作策略优化 |
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| 引用本文： | 宋海龙,史磊,刘若鹏.特高压换流站直流穿墙套管故障动作策略优化[J].防灾减灾工程学报,2017(1):44-47. |
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| 作者姓名： | 宋海龙 史磊 刘若鹏 |
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| 作者单位： | 国网宁夏电力公司检修公司,宁夏银川 750011 |
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| 摘 要： | 针对特高压换流站直流穿墙套管故障导致健全换流器闭锁的问题,采用一种增加特高压换流站换流器差动保护区域的方法,避免单极闭锁后发生直流系统接地电流过大引起直流偏磁的危害。应用结果表明:直流穿墙套管故障引起健全换流器自动重启策略对直流系统利用率有着显著提升。
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| 关 键 词： | 穿墙套管 换流器差动保护 动作策略 直流偏磁 |
Optimization of DC wall bushing faults action strategy inUHV converter station |
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| SONG Hailong,SHI Lei,LIU Ruopeng.Optimization of DC wall bushing faults action strategy inUHV converter station[J].Journal of Disaster Prevent and Mitigation Eng,2017(1):44-47. |
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| Authors: | SONG Hailong SHI Lei LIU Ruopeng |
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| Institution: | Maintenance Filiale of State Grid Ningxia Power Co , Y inchuan Ningxia 750011 , China |
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| Abstract: | Aiming at the problem of DC wall bushing faults leading to the healthy converter blockingn UHV converter station, using the method of enlarging the converter differential protection area ofUHV converter station avoids the hazard of DC magnetic bias due to large DC system earth currentafter the monopoles blocking. The result shows that the automatic restart strategy of the healthyconverter causing by DC wall bushing faults can promote significantly the utilization ratio of DCsystem. |
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