广东电力2016，Vol.29Issue(12)：135-142,8.DOI:10.3969/j.issn.1007-290X.2016.12.024
一种适用于架空线柔性直流输电的增强型四电平子模块拓扑
Enhanced Four-level Sub-module Topology for VSC-HVDC of Overhead Transmission Lines
李城达1
作者信息
- 1. 国网浙江省电力公司杭州供电公司,浙江杭州310000
- 折叠
摘要
Abstract
Voltage source converter based high voltage direct current (VSC-HVDC) technology has not been massively and commercially applied in high voltage DC breakers,it has very important engineering meanings to use converter topology with DC fault self-cleaning capability.In allusion to modular multi-level converter based high voltage DC (MMC-HVDC) technology based on improved sub-module,a kind of enhanced four-level sub-module (EFLSM) with DC fault self-cleaning capability is presented which is able to independently control switching state of each capacitor and output four level among three level and zero level at random.Compared with current full-bridge sub-module and clamped double sub-module,this sub-module can ensure DC self-cleaning capability as well as reduce semiconductor apparatus shared by each capacitor,in addition,converter loss has been close to that of the level of traditional half-bridge sub-modular multi-level converter.In PSCAD/EMTDC,a time-domain simulation model is established to verify validity of the proposed topology.关键词
模块化多电平换流器/架空线输电/改进型子模块/增强型四电平子模块Key words
modular multi-level converter/overhead transmission line/improved sub-module topology/enhanced four-level sub-module分类
信息技术与安全科学引用本文复制引用
李城达..一种适用于架空线柔性直流输电的增强型四电平子模块拓扑[J].广东电力,2016,29(12):135-142,8.
