摘要
将分布式电源与就地负荷联结成微网接入配电网是发挥分布式发电效能的有效方法,而如何评价微网接入后对配电网结构及输电效能的影响则是合理规划含微网配电网的重要环节。引入复杂网络理论中的特征路径长度概念,结合配电网的结构和运行特点,考虑支路阻抗、负荷分布和微网渗透率,对配电网进行节点和边的加权复杂网络建模,在此基础上构造了用于配电网输电效能评估的量化指标。利用69节点网络对无权、加权模型的效能指标进行对比,并仿真分析了微网的渗透率、接入位置等因素对效能指标的影响,论证了指标的有效性。
It is an effective way for the operation of distributed generation which is interconnected to distribution sys- tem through the interface of microgrid combined with local load, and one of the key steps of planning of distribution con- taining the microgrid is to assess the influence of the microgrid. The concept of characteristic path length in complex net- work theory was introduced. According to the structure and operation of distribution system, the weighted network model was formulated with considering the impedence,load and the penetration of microgrid, and a novel transmission efficiency assessment index was presented for the distribution system. The index was demonstrated efficient with 69-node distribu- tion network.
出处
《武汉理工大学学报》
CAS
CSCD
北大核心
2013年第4期136-140,共5页
Journal of Wuhan University of Technology
基金
广东省自然科学基金(10151009001000045)
广东省绿色能源技术重点实验室资助项目(2008A060301002)
关键词
微网
配电网
复杂网络
特征路径长度
输电效能
microgrid
distribution system
complex network
characteristic path length
transmission effi-ciency
