基于晶闸管反并联结构的高压电源快切系统的研究  

The study of high voltage power supply quick switching system based on thyristor antiparallel structure

作　　者：张宝华[1] 杨亚光[2] 马幼捷[2] 周雪松[2] 周金程[2] 

机构地区：[1]中国石油化工股份有限公司天津分公司,天津300271 [2]天津理工大学自动化学院,天津300384

出　　处：《天津理工大学学报》2013年第1期12-16,共5页Journal of Tianjin University of Technology

基　　金：国家自然科学基金(50877053);天津市自然科学基金(09JCYBJC07100);天津石化电网高压电源快速投切系统的研究(G2144-1005-0012-ZSQT)

摘　　要：在高压电力系统中,为保证企业负荷供电连续性,多采用两组电源互为备用的工作方式.目前工程应用中采用备自投或微机型厂用电快切装置来实现电源切换,但由于最快的断路器开关合闸时间较长,切换速度受到影响.为减小切换时间,分析了三相调压电路的原理及工作过程,提出一种晶闸管反并联结构来代替机械开关实现高压电源快切,从而得到一种电力电子式快切系统.仿真和实验证明,该方案能有效提高电网的安全.In high voltage power system, to ensure enterprise load power supply continuous, two groups of power supply mutual compensation way of working was adopted. In the current, the engineering application adopt auto - put - into device of reserve - source or microcomputer type high voltage power supply quick switching device to realize power supply switching, but because the off time of fastest circuit breaker switch is quite long, switching speed is affected. To reduce the switch time, the principle and working process of three phase alternating voltage regulation circuit was analyzed, a kind of thyristor antiparallel structure was put forward for insteading of mechanical switch andrealizing power supply quick switching. Thus power electronic type high voltage power supply quick switching was studied. Simulation and experimental results show that this scheme can effectively improve the safety of the power grid.

关 键 词：高压电源快切 交流调压电路 电力电子开关 快切判据 

分 类 号：TM72[电气工程—电力系统及自动化]