悬浮导体感应电压的估算及对策  

Estimation and Countermeasures of Floating Conductor Induced Voltage

作　　者：刘丽娜[1] 陶加祥[1] 万健 谢辉春 喻建琴 

机构地区：[1]中国地质大学(武汉)机械与电子信息学院,湖北武汉430074 [2]武汉广播电视台,湖北武汉430000 [3]中国电力科学研究院武汉分院,湖北武汉430074

出　　处：《中国电力》2017年第11期127-133,共7页Electric Power

基　　金：国家电网公司科技项目(GY71-12-030)~~

摘　　要：直流线路下方悬浮导体将产生一定的感应电压,人体接触时可能会受到暂态电击。为估算该电压,采用基于Deutsch假设的数值计算方法获得了直流线路下合成电场,并采用模拟电荷法获得线下标称场下悬浮细导体电位,然后从工程简化角度出发,利用标称场下的悬浮细导体电位与电位比例系数相乘,得到了估算合成场下的导体感应电位的方法。最后提出了降低悬浮导体感应电压的措施。A floating conductor below the direct current （DC） transmission lines will produce certain induction voltage and the human body would be ＂affected by transient shock when contacting the conductor. In order to estimate the induction voltage, the total electric field under DC lines is obtained by the Deutsch-based numerical calculation method, and the potential of floating fine conductors in the nominal electric field under DC lines is gotten by the charge simulation method. For the purpose of engineering simplification, a method is proposed for estimating conductor induction potential in the total field by multiplying the potential of floating fine conductors with the potential proportion coefficient. Finally measures are proposed to reduce the induced voltage of floating conductors.

关 键 词：高压直流输电线路 合成电场 悬浮细导体 感应电压 估算 

分 类 号：TM15[电气工程—电工理论与新技术] TM75