变电站高压断路器新型选相控制器研究  

Study of controlled switching device for high-voltage circuit breaker in substation

作　　者：曾凡兴 赵谦[2,3] 余祥坤 李帅 张红伟[1] 史正阳 ZENG Fanxing;ZHAO Qian;YU Xiangkun;LI Shuai;ZHANG Hongwei;SHI Zhengyang(Hubei Electric Engineering Corporation,Wuhan 430000,China;Guodian Nanjing Automation Co.,Ltd.,Nanjing 210003,China;Nanjing Guodian Nanzi Grid Automation Co.,Ltd.,Nanjing 211153,China)

机构地区：[1]湖北省电力勘测设计院,湖北武汉430000 [2]国电南京自动化股份有限公司,江苏南京210003 [3]南京国电南自电网自动化有限公司,江苏南京211153

出　　处：《电力系统保护与控制》2018年第22期143-148,共6页Power System Protection and Control

基　　金：江苏省科技成果转化专项资金项目资助(BA2016057)~~

摘　　要：跳合闸相位控制是抑制高压断路器操作对自身和系统冲击的重要手段。为了适应变电站采样方式变化和高电压等级跳合闸相位控制准确度、可靠性要求提升,改进了独立选相控制器方案。研究了基于微控制器、FPGA协同的IGBT、继电器独立操作与混合出口,据此设计新回路与板件。提出了基于复向量提取的频率相位测量算法,用于目标点准确计算。改进方案提升了选相控制器控制准确度,提高了耐受电磁干扰能力。经过仿真分析与试验验证,所研究的选相控制器可以在目标点准确操作断路器,验证了改进方法的有效性。The controlled switching is a significant method to restrain shock to the mechanism itself and power system when operating high-voltage circuit breakers.By the change of substation digital sampling and higher requirement of controlled switching on accuracy and reliability on high voltage level,this paper improves the independent controlled switching solution.It studies the technologies of independent operation and composite output of IGBT contact and relay contact based on microcontroller and FPGA coordination,and on this basis,designs new circuit and hardware.It proposes a frequency and phase calculation algorithm based on complex vector extraction for target point calculation.This solution can improve precision of controlled switching and prevent from electromagnetic interference.After simulation and system testing verification,the studied controlled switching device in the paper is able to accurately operate circuit breakers in target points,which proves the effectiveness of the solution.

关 键 词：高压断路器 选相控制 绝缘栅双极型晶体管 频率相位计算 抗干扰 

分 类 号：TM561[电气工程—电器]