UHVDC换流阀晶闸管级阻抗检测仪设计与实现  

Design and implementation of thyristor level impedance detector in UHVDC converter valve

作　　者：樊宏伟[1] 王红青[2] 孟学磊 张振兴[1] 王艳双[1] 

机构地区：[1]许继集团有限公司,河南许昌461000 [2]国网上海市电力公司,上海200122

出　　处：《信息技术》2015年第11期65-68,72,共5页Information Technology

基　　金：国家电网公司科技项目(5292C0140037)

摘　　要：针对高压直流输电换流站现场换流阀晶闸管级阻尼回路检测需求,提出了一种基于MCU+FPGA架构的晶闸管级阻抗快速检测方法,主要组成有基于FPGA控制器的阻尼回路电压电流采集模块、基于MCU的阻抗计算模块和通信接口,以及人机接口;完成了晶闸管级阻抗检测、测量结果判定和直观显示。测量误差<5%,满足现场检测需求,该检测方法已应用于特高压直流输电换流站现场晶闸管级阻抗检测。For detecting requirements of converter valve thyristor RC series damping loop in HVDC converter station site level, this paper proposes a rapid detection method of the thyristor level impedance based on MCU ＋ FPGA architecture. The major components consist of voltage current acquisition module of damping circuit based on FPGA controller, the impedance calculation module and communication interface based on MCU, and the man-machine interface;it completed the thyristor impedance detection, measurement results judgement and visual display. The measurement error is 〈 5%, meets the demand of field testing, the test method is applied to thyristor impedance detection in UHVDC converter station site.

关 键 词：RC阻抗 MCU FPGA 晶闸管 特高压直流 

分 类 号：TM934[电气工程—电力电子与电力传动]