考虑线路实际运行状态的故障测距补偿方法  

A Method for Fault Location Compensation Considering Operating States of Transmission Lines

作　　者：刘亚东[1] 盛戈皞[1] 孙旭日 高森 江秀臣[1] 

机构地区：[1]上海交通大学电子信息与电气工程学院,上海市200240 [2]山东电力集团聊城供电公司,山东省聊城市252000 [3]山东超高压公司,山东省济南市250021

出　　处：《电力系统自动化》2012年第13期92-96,115,共6页Automation of Electric Power Systems

基　　金：国家自然科学基金资助项目(50977057)~~

摘　　要：根据输电线路状态方程,分析了输电线路长度变化与线路实际运行状态,包括导线运行温度、导线等值覆冰厚度及风速的对应关系,提出根据导线实际运行状态计算输电线路实际长度的方法,并以东北某线路实际监测导线张力和导线温度数据验证了此方法的正确性。根据输电线路长度变化与线路实际运行状态的关系,建立了输电线路各点在不同状态下距线路首端距离的换算方程,最终将实际故障距离换算成故障点距线路首端水平距离。The relationship between the transmission line length and the operating states of transmission line, including the conductor temperature, equivalent icing thickness and wind speed, is analyzed based on the equation of state in transmission line. The corresponding method to calculate the transmission line length is also proposed by considering the operating states of transmission line. Correctness of this method is verified by the conductor tension and conductor temperature practical running data from Northeast China. Finally, the conversion equation is established according to relationship between the transmission line length and the operating states of transmission line, and then the actual distance to fault position is converted into the horizontal distance.

关 键 词：故障测距 输电线路 运行状态 导线长度 补偿方法 

分 类 号：TM755[电气工程—电力系统及自动化]