柔性直流输电工程用电容参数研究  

Study on Capacitor Parameters of Flexible HVDC Transmission Project

作　　者：姜浩宇 李化[2,3] 易博思 李露 陈麒任[1,2] 李征 林福昌 蔡炜[4] 张海龙[4] JIANG Haoyu;LI Hua;YI Bosi;LI Lu;CHEN Qiren;LI Zheng;LIN Fuchang;CAI Wei;ZHANG Hailong(School of Electrical and Electronic Engineering,Huazhong University of Science&Technology,Wuhan 430074,China;State Key Laboratory of Advanced Electromagnetic Engineering and Technology,Huazhong University of Science&Technology,Wuhan 430074,China;Huazhong University of Science and Technology Key Laboratory of Pulsed Power Technology,Ministry of Education,Wuhan 430074,China;Wuhan Nari Limited Company of State Grid Electric Power Research Institute,Wuhan 430074,China)

机构地区：[1]华中科技大学电气与电子工程学院,武汉430074 [2]华中科技大学强电磁工程与新技术国家重点实验室,武汉430074 [3]华中科技大学脉冲功率技术教育部重点实验室,武汉430074 [4]国网电力科学研究院武汉南瑞有限责任公司,武汉430074

出　　处：《电力电容器与无功补偿》2020年第1期102-106,共5页Power Capacitor & Reactive Power Compensation

基　　金：国家电网公司科技项目(SGZJ0000KXJS1800345)。

摘　　要：柔性直流输电工程用电容器是柔直工程的关键组成部分,为柔直系统提供直流电压支撑,决定了直流侧的电压波动范围。本文介绍了模块化多电平换流器中子模块电容和两电平换流器中直流侧电容的电容参数设计方法及影响因素,对比分析发现两者电容值的选取存在等效关系。Capacitor for flexible HVDC transmission project is the key component of flexible HVDC trans⁃mission project,which provides DC voltage support of flexible DC system and determines voltage fluctua⁃tion range of the DC side.In this paper,the design method and influencing factors of the capacitor parame⁃ters ofthe DC side capacitor of sub⁃module capacitor and two level converters in the modular multilevel con⁃verter are introduced,and it is found by the comparison and analysis that the selection of the capacitance between them has equivalent relations.

关 键 词：柔性直流输电 直流支撑电容器 模块化多电平换流器:两电平换流器 参数设计 

分 类 号：TM721.1[电气工程—电力系统及自动化]