智能园区兆瓦级多微电网建设与运行模式
摘要:接入中低压配电网的微电网数量不断增加，使得通过互联提高区域多个微电网的整体运行经济性和可靠性成为可能。提出1类基于公共储能的微电网互联结构，公共储能通过2组共直流母线的双向逆变器同时为2个微电网提供能量支撑，实现不同馈线下电压、频率各异的微电网互联。优化运行状态下，实现互联微电网之间的能量互济，提高区域内分布式能源消纳水平；故障情况下，通过自适应组网，保障重要负荷的持续供电。基于这一设计理念，建成了天津生态城区域多微电网工程，该工程由1座中低压嵌套微电网和2座低压微电网两两互联而成。在此基础上，探索基于公共储能的区域多微电网商业运营模式，即通过优化资源配置实现电网企业和光伏投资方的双方共赢。
Abstract：The increasing number of microgrids connected to medium and low voltage distribution system makes it is possible to improve economy and reliability of the overall multi-microgrid through interconnection. This paper presents a kind of configuration of interconnected multi-microgrid based on common energy storage. Two microgrids are provided with energy support by common energy storage through two bi-directional inventers connected to common DC bus, which can interconnect two microgrids with different voltage and frequency under different feeders. In the optimized operation state, it can achieve two way energy support between interconnected microgrids, and improve the consumption level of regional distributed energy resources; under fault conditions, it can sustain power supply for important loads through adaptive networking. Based on this design concept, a regional multi-microgrid project of Tianjin Eco-city has been built, which is consist of a medium and low voltage nested microgrid and two low voltage microgrids. On this basis, this paper also discusses the commercial operation mode of regional multi-microgrid based on common energy storage, which is to achieve the win-win situation of electric power corporations and photovoltaic investors through optimizing the allocation of resources.
标题：智能园区兆瓦级多微电网建设与运行模式
title:Construct and Operating Modes of MW Multi-Microgrid in Smart Park
作者：项添春,王旭东,马世乾,丁一
authors:XIANG Tianchun,WANG Xudong,MA Shiqian,DING Yi
关键词：公共储能,区域多微电网,优化配置,商业运营模式,
keywords:common energy storage,regional multi-microgrid,optimal configuration,commercial operation mode,
发表日期：2017-08-31
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