微电网结构特性分析与设计

Study on structure characteristics and designing of microgrid

典型微网网架结构是微网能量管理、控制、保护与稳定的基础。在分析微网网架的基础上,根据微网特点将微网分为交流微网、直流微网和交直流混合微网。分析了各种典型微网结构的特点、适用范围,以微网负荷与电源容量匹配为基本原则,同时考虑微网地理特点、接入的配电网结构、运行方式等基本要素研究了微网结构的设计方法,提出微电网结构设计流程。

Typical microgrid structure is fundamental to energy management, control, protection and stability of microgrid. Based on the analysis of the structure and the characteristic of microgrid, the microgrid is divided into three kinds, including AC microgrid, DC microgird and AC/DC hybrid microgrid. According to each typical architecture of the three microgrids, related characteristics and suitable scopes are analyzed in the paper. Considering the basic principle of matching of source and load, some element factors such as geographical feature, structure of distributed network, operation modes and procedures are analyzed and microgird＇s design methodology is studied. At last, procedures are put forward to provide a reference for the microgird＇s design.