摘要
直流极保护用于保护直流相关设备,对直流输电系统的安全稳定运行起着重要作用,通过分析某换流站直流极保护二次回路,发现其二次回路中存在单一元件损坏引起极保护误动的隐患,并提出了相关改进措施,为其他换流站直流安全稳定运行提供参考和借鉴。
DC pole protection is used to protect DC related equipment,which plays an important role in the safe and stable operation of DC transmission system.By analyzing the secondary circuit of DC pole protection in a converter station,it is found that there is a hidden danger that a single element damage in the secondary circuit could cause error of the protection.Some suggestions are put forward,which can also be used for reference for the safe and stable operation of DC in other converter stations.
引文
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