电网技术2016，Vol.40Issue(3)：733-740,8.DOI:10.13335/j.1000-3673.pst.2016.03.011
基于模块化多电平型固态变压器的新型直流微网架构及其控制策略
A New DC Microgrid Architecture Based on MMC-SST and Its Control Strategy
摘要
Abstract
A new DC microgrid architecture based on modular multilevel converter type solid state transformer (MMC-SST) is proposed in this paper.It can accommodate renewable energy in maximum extent,improve power quality and realize bi-directional demand-dependent transmission and dynamic balanced energy utilization.Firstly,new DC microgrid system structure based on MMC-SST is analyzed in detail.Its main circuit topology of MMC-SST is given.Secondly,optimization design is performed for MMC-SST control strategy and energy management algorithm in DC microgrid subsystem,making MMC-SST run under given power factor with faster transient response and stronger robustness than traditional mode.It can also realize flexible,economical and reliable operation of DC microgrid system.Finally,a simplified simulation platform of new DC microgrid subsystem based on MMC-SST is established.Comprehensive simulation results verify feasibility and effectiveness of the proposed structure and its control strategy.关键词
模块化多电平变流器/固态变压器/直流微网/新能源/控制策略Key words
modular multilevel converter/solid state transformer/DC microgrid/renewable energy/control strategy分类
信息技术与安全科学引用本文复制引用
韩继业,李勇,曹一家,宁志毫,沈阳武,熊家敏,黎昀轩..基于模块化多电平型固态变压器的新型直流微网架构及其控制策略[J].电网技术,2016,40(3):733-740,8.基金项目
国家自然科学基金项目(51377050、51377001、61233008) （51377050、51377001、61233008）
科技部国际合作项目(2015DFR70850).Project Supported by National Natural Science Foundation of China(51377050,51377001,61233008) （2015DFR70850）
International Cooperation Project of Ministry of Science and Technology(2015DFR70850). （2015DFR70850）
