电力系统自动化2016，Vol.40Issue(21)：112-116,194,6.DOI:10.7500/AEPS20160425015
单向LC型直流-直流变换器的设计与控制
Design and Control of Unidirectional LC-type DC-DC Converter
摘要
Abstract
This paper is concerned with a type of unidirectional LC DC-DC converter for interconnecting two DC grids with different voltage levels.This unidirectional LC-type DC-DC converter is composed of voltage source converter,uncontrolled rectifiers and LC circuit which is in series connection with them.The topology design of the converter is studied,and the design procedures are presented.A control strategy for the unidirectional LC-type DC-DC converter is also proposed.The designed converter has the ability to retain the fault current near or within the rated values.A 30 MW ±10 kV/±100 kV model is developed on the PSCAD platform to verify the effectiveness of the control strategy during step power orders and favorable DC fault responses.Compared with other DC-DC converters,the unidirectional LC-type DC-DC converter has high stepping ratios, good controllability,low cost and the ability to ride through DC faults.关键词
直流电网/直流-直流变换器/高压直流输电/拓扑设计Key words
DC grid/DC-DC converter/high voltage direct current(HVDC)transmission/topology design引用本文复制引用
李梦柏,林卫星,劲宇..单向LC型直流-直流变换器的设计与控制[J].电力系统自动化,2016,40(21):112-116,194,6.基金项目
中国博士后科学基金资助项目(2016T90690)。@@@@This work is supported by Post-doctoral Science Foundation of China(No.2016T90690) （2016T90690）
