微网对配电系统可靠性的影响评估  

Impact Assessment of Micro-grid on Distribution System Reliability

作　　者：葛兴凯[1] 程浩忠[1] 何维国[2] 方陈[2] 包海龙[2] 

机构地区：[1]上海交通大学电子信息与电气工程学院,上海200240 [2]上海市电力公司电力科学研究院,上海200437

出　　处：《水电能源科学》2013年第4期178-182,共5页Water Resources and Power

基　　金：国家重点基础研究发展计划(973计划)基金资助项目(2009CB219703)

摘　　要：为了更好地应用分布式电源(DG),微网受到越来越多的关注,因此有必要对微网接入后配电系统的可靠性进行评估。本文应用光伏发电、风电、微型燃气轮机和储能等分布式电源构建微网,建立可靠性分析模型,并提出适用于含微网配电系统的新型可靠性指标。利用最小路法,按照不同方案对某辐射型配电系统进行可靠性评估,在评估中考虑了重要负荷的因素。结果表明,微网的接入可提高配电系统的可靠性,微网的接入位置、容量等也会对可靠性产生较大的影响。当考虑了重要负荷时,微网的效益更加显著。In order to make better use of distributed generators （DG）, micro-grids are getting more and more notice. So, it is necessary to assess the impact of micro-grid on distribution system reliability. The PV, WT, micro gas turbine and energy storage are applied to build micro-grids and its reliability analysis model. Besides, some new reliability index has been proposed to assess the distribution system with micro-grids. By using minimal path method, this article assesses the reliability of a radiant power distribution system based on different alternatives. The factor of important loads has been considered. The results show that micro-grids can raise the distribution system reliability~ the location and capacity of micro-grids have an obvious influence on the reliability~ the benefit of micro-grids is more notable when the factor o{ important loads are considered.

关 键 词：微网 分布式能源 配电系统 可靠性 最小路法 重要负荷 

分 类 号：TM732[电气工程—电力系统及自动化]