特高压直流换流阀异常导通原因分析及对策

Cause Analysis and Countermeasures of Abnormal Conduction of UHVDC Converter Valve

随着国家经济的不断进步,相关部门逐步重视特高压换流站的正常运行。为进一步寻求换流站核心设备换流阀异常导通原因,势必要明确换流阀的拓扑结构、主电路基本情况以及阀控系统设备内容等,从换流阀结构原理着手,多方面做好综合分析和考量。以一个真实案例作为切入点,综合研究换流阀异常导通的原因,并提出有效对策。对此,为减少换流阀异常导通带来的影响,确保换流阀的正常工作,简要分析换流阀情况,以期提供参考。

With the continuous progress of national economy,relevant departments gradually pay attention to the normal operation of UHV converter station.In order to further find the reason for the abnormal conduction of the converter valve,the core equipment of the converter station,it is bound to clarify the topology of the converter valve,the basic situation of the main circuit and the equipment content of the valve control system,and make comprehensive analysis and consideration in many aspects from the structural principle of the converter valve.Taking a real case as the starting point,this paper comprehensively studies the causes of abnormal conduction of converter valve,and puts forward effective countermeasures.In this regard,in order to reduce the impact of abnormal conduction of the converter valve and ensure the normal operation of the converter valve,the situation of the converter valve is briefly analyzed in order to provide reference.