摘要
网络重构是配网运行及优化的重要功能之一,随着智能电网建设的进展,其重要性越发显现。基于随机优化技术(如粒子群方法等)的网络重构算法中,为保证重构解满足拓扑的放射性约束,往往采用图的遍历方法进行确定,当网络规模比较大时,遍历的计算量很大且繁琐。根据配网的结构特点,首先根据配网重构解所需满足放射性约束的必要条件,对配网进行化简,而得到相应的等效简化网络;然后提出基于基本树的拓扑放射性快速判断方法;进而把该快速拓扑判断方法应用于基于粒子群优化方法的配网重构中,以加快其计算速度。算例表明,所提拓扑快速判断方法相对于全网络遍历方法,在计算速度上有明显优势,且随着系统规模的增大,所提方法的优越性更明显。
Network reconfiguration is one of the most important functions in distribution network operation and optimization. With the development of smart grid, its importance is significantly increasing. In order to meet the topology radial constraint for any reconfiguration solution for the algorithms based on stochastic optimization techniques （such as particle swarm optimization （PSO） etc.）, traverse method usually has to be utilized. But when the size of network is relatively large, it costs more time for traverse method and processing is more tedious. In this paper, the distribution network was firstly simplified to achieve a simplification network according to the structural characteristics, then, a fast method to judge the topology radial property for a reconfiguration solution based on basic-tree was proposed, and was further added to the method of network reconfiguration based on PSO to accelerate the calculation speed. The results of the examples show that the method proposed in this paper has a distinct advantage in the calculation speed compared with traverse method that is popularly used, and as the size of the network increases, its superiority is more obvious.
出处
《中国电机工程学报》
EI
CSCD
北大核心
2013年第25期156-166,23,共11页
Proceedings of the CSEE
关键词
配网
网络重构
简化网络
拓扑放射性约束
基本树
distribution network
network reconfiguration
simplification network
topology radial constraint
basic-tree
