交直流导线平行架设时混合电场特性分析  

The Characteristics of Hybrid Electric Field under the DC Wire Parallel with the AC Wire

作　　者：孙帅 卢铁兵 崔翔 Sun Shuai;Lu Tiebing;Cui Xiang(State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources North China Electric Power University Beijing 102206 China)

机构地区：[1]新能源电力系统国家重点实验室(华北电力大学),北京102206

出　　处：《电工技术学报》2017年第8期138-143,共6页Transactions of China Electrotechnical Society

基　　金：国家自然科学基金重点项目(51037001);国家电网公司科技项目(GYB17201400185)资助

摘　　要：高压交直流输电线路同走廊架设可以提高输电走廊利用率,但是线路电晕放电会产生混合电场问题。本文搭建平行架设的单极直流导线和单相交流导线实验平台,测量导线不同布置方式下的地面混合电场。在验证混合有限元-有限体积法的有效性基础上,对地面混合电场进行计算。通过实验和计算,获得交流导线电压、导线高度、邻近距离对地面混合电场特性的影响规律。本文的研究结果可为交直流同走廊架设的输电线路设计提供参考。The hybrid HVAC and HVDC transmission lines in one corridor is a solution toimprove the utilization of transmission corridors.However,the hybrid electric field due to the coronaof transmission lines must be considered.An experimental model including unipolar DC wire parallelwith the single-phase AC wire is established in this paper to measure the ground-level hybrid electricfield under different arrangements.The ground-level hybrid electric field is also calculated by thecombination method of finite element method(FEM)and finite volume method(FVM).Then,theimpacts,such as voltage of the AC wire,the height of AC and DC wires and the adjacent distancebetween DC and AC wires,are researched.It is helpful for the design of hybrid HVAC and HVDCtransmission lines.

关 键 词：电晕放电 交直流并行 混合电场 直流分量 

分 类 号：TM152[电气工程—电工理论与新技术] TM726.1