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.
出处
《水电能源科学》
北大核心
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)
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
micro-grid
distributed generator
distribution system
reliability
minimal path method
important load
