摘要
以宁波交直流混合微电网系统为背景,首先从电压等级、母线结构、接地方式、网络拓扑等方面阐述了交直流混合微电网的规划设计方案,并给出了交直流混合微电网的拓扑结构图。其次根据微电网的拓扑结构图,提出了4种工程运行方式,详细分析了运行方式切换控制策略。最后通过实际运行结果证明,灵活的网络结构和智能的切换控制策略可实现交直流微电网运行方式的无缝切换,提高了系统的经济性和可靠性。
Taking a hybrid AC/DC microgrid system in Ningbo as an example,the planning and design of the hybrid AC/DC microgird is elaborated in terms of voltage level,bus structure,grounding mode,network topology,etc. The structure of hybrid AC/DC microgrid is also presented. Based upon the structure of this microgrid,four operation modes are proposed. The corresponding operation switching control strategy is specifically analyzed. Finally,it is verified that flexible network structure and intelligent switching control strategy are able to realize the seamless switching of operation mode hybrid AC/DC microgrid through the actual operation result.
出处
《供用电》
2016年第8期18-22,共5页
Distribution & Utilization
基金
国家高技术研究发展计划(863计划)资助项目(2015AA050102)
浙江省电力公司科技项目(5211DS13500L)~~
关键词
交直流混合
微电网
网络结构
模式切换
控制策略
hybrid AC/DC
microgrid
network structure
mode switching
control strategy
