特高压直流输电系统旁路断路器保护的改进和仿真  

Improvement and Simulation of Bypass Circuit Breaker Protection for UHVDC Transmission System

作　　者：严喜林 邬乾晋[1] 国建宝[1] 王学之[1] 顾保全[1] 

机构地区：[1]中国南方电网超高压输电公司检修试验中心,广州510663

出　　处：《南方电网技术》2017年第12期9-15,22,共8页Southern Power System Technology

摘　　要：结合旁路断路器保护1段(82BPS-1)的原理,分析了2015年9月10日普侨特高压直流82BPS-1保护动作原因及存在的风险,发现旁路断路器保护积分计数模块不合理导致存在保护误动缺陷。针对该逻辑缺陷,提出了利用旁路断路器合闸命令将82BPS-1保护积分模块计数器清零的优化方案,并利用RTDS仿真试验验证了该方案的有效性。目前该优化方案已在普侨、楚穗特高压直流工程现场实施应用。Combined with the principle of bypass switch protection stage 1 （82BPS-1）, the action reason and existing risk of 82BPS- 1 protection in Puer-Qiaoxiang UHVDC on September 10 of 2015 is analyzed. Then the defect of bypass switch protection is found that the unreasonable integral counting module can make 82BPS-1 protection maloperation. Aiming at the problem, an improved measure is proposed which using the bypass switch closing order to clear the count of 82BPS-1 protection integral counting module. The effectiveness of the measure has been verified by RTDS simulation tests. At present, the improved measure has been applied to Puer-Qiaoxiang and Chuxiong-Suidong UHVDC transmission systems.

关 键 词：特高压直流 旁路断路器保护 保护误动 控制保护系统 

分 类 号：TM755[电气工程—电力系统及自动化]