电力系统保护与控制Issue(10)：20-26,7.
特高压交流线路对平行架设特高压直流线路的工频电磁感应影响
Electromagnetic influence of AC transmission lines on parallelly erected UHVDC transmission lines
李宝聚 1周浩 2郭雷1
作者信息
- 1. 吉林省电力有限公司，吉林 长春 130021
- 2. 浙江大学电气工程学院，浙江 杭州 310027
- 折叠
摘要
Abstract
It can increase line corridor utilization when AC transmission lines are set parallel with UHVDC transmission lines. At the same time, the AC transmission line which is parallel with UHVDC line may cause electromagnetic influence upon UHVDC transmission line. The power frequency AC component will generate along the UHVDC transmission line. The power frequency AC current will be transformed into DC current under the action of current converter. When flowing into converter transformer, the DC current can cause transformer magnetic bias. Based upon EMTDC software, the simulation model of UHVAC/UHVDC transmission lines is set up. The electromagnetic influence of AC transmission line on UHVDC transmission line in parallel is studied. The factors such as parallel erection length, adjacent distance, conductor transposition and single phase grounding fault that affect the electromagnetic induction influence upon UHVDC transmission line are analyzed. The power frequency induced voltage, induced current and DC bias current in UHVDC lines which are paralleled with UHVAC/EHVAC transmission line and UHVAC single or double-circuit transmission line are compared and analyzed.关键词
特高压/直流偏磁电流/感应电压/感应电流/电磁感应/仿真计算Key words
ultra-high voltage(UHV)/DC bias current/induced voltage/induced current/electromagnetic induction/simulation calculation分类
信息技术与安全科学引用本文复制引用
李宝聚,周浩,郭雷..特高压交流线路对平行架设特高压直流线路的工频电磁感应影响[J].电力系统保护与控制,2013,(10):20-26,7.
