电源学报2018，Vol.16Issue(2)：95-103,9.DOI:10.13234/j.issn.2095-2805.2018.2.95
应用于智能配电网的子模块混联MMC-HVDC系统配置及启动策略
Configuration and Start-up Strategy of Sub-module Hybrid MMC-HVDC System for Intelligent Distribution Network
苏欣 1张海龙 2王玥娇 3施雨 1张浩 2程艳 3滕玮 3王士柏 3刘博 1王俏俏1
作者信息
- 1. 济南供电公司,济南250012
- 2. 西安许继电力电子技术有限公司,西安710075
- 3. 国网山东省电力公司电力科学研究院,济南250002
- 折叠
摘要
Abstract
To provide a better scheme with DC fault-crossing capability for the voltage source converter based high voltage direct current(VSC-HVDC)transmission system,a novel configuration method and its matched start-up strategy are proposed for a sub-module hybrid modular multilevel converter-high voltage direct current(MMC-HVDC)system based on various sub-module hybrid MMC systems. The configuration method mainly includes two parts: one is the configuration method for the number of sub-modules,and the other is for the internal parameters of sub-modules.The first configuration method can save economic cost and reduce system loss while making the converter have the DC fault-crossing capability and improving the system capacity; the second can limit the voltage variation of the full-bridge sub-module during the crossing process and guarantee the normal operation of fault-crossing. Since different sub-modules adopt different capacitors,the start-up strategy for the traditional MMC-HVDC system is not applicable, thus a novel start-up strategy is proposed to match the configuration method. Finally, a simulation model of a two-terminal MMC-HVDC transmission system is constructed in Matlab/Simulink, and simulation results show that the novel configuration method and the corresponding start-up strategy are feasible and effective.关键词
模块化多电平换流器/子模块混联/系统配置/启动策略Key words
modular multilevel converter/sub-module hybrid/system configuration/start-up strategy分类
信息技术与安全科学引用本文复制引用
苏欣,张海龙,王玥娇,施雨,张浩,程艳,滕玮,王士柏,刘博,王俏俏..应用于智能配电网的子模块混联MMC-HVDC系统配置及启动策略[J].电源学报,2018,16(2):95-103,9.
