摘要
运行试验是保证柔性直流换流阀安全可靠运行的重要手段。该文分析了模块化多电平换流阀在柔性高压直流输电系统中的运行特性;在此基础上,提出了一种H桥型运行试验拓扑结构。建立了试验拓扑的交直流等效电路,从功率平衡角度,建立了拓扑的数学模型,详细阐述了其运行机理。搭建了运行试验平台,并对±500 k V/3000 MW的换流阀进行运行试验,试验结果验证了所提运行试验拓扑的正确性、有效性。
Operational test experiments are important means to ensure the safe and reliable operation of converter valves for voltage sourced converter based high voltage direct current（VSC-HVDC） transmission. In this paper,the operating characteristics of modular multilevel converter（MMC） valves for VSC-HVDC were analyzed and a new operational test topology, based on H-bridge structure, was proposed. And then, the AC/DC equivalent circuit models were built. According to the balance between AC and DC power,the mathematical model and operating mechanism of the test circuit was presented. At last, the operational test platform was built and the ±500 k V/3000 MW converter valves were tested. The experimental test results verified the validity and effectiveness of the proposed operational test topology.
作者
高冲
汤广福
郑健超
许彬
杨俊
贺之渊
GAO Chong;TANG Guangfu;ZHENG Jianchao;XU Bin;YANG Jun;HE Zhiyuan(China Electric Power Research Institute,Haidian District,Beijing 100192,China;Global Energy Intercormection Research Institute,Changping District,Beijing 102200,China;State Key Laboratory of Advance Power Transmission Technology,Changping District,Beijing 102200,Chin;Beijing Key Laboratory of High Power Electronic,Changping District,Beijing 102200,China)
出处
《中国电机工程学报》
EI
CSCD
北大核心
2018年第13期3896-3903,共8页
Proceedings of the CSEE
基金
国家科技重大专项(2015ZX02301003)~~
关键词
柔性高压直流输电
模块化多电平换流器
运行试验
电路拓扑
voltage sourced converter based high voltage direct current transmission （VSC-HVDC）
modular multilevel converter （MMC）
operational test
circuit topology
