含多微网配电系统自适应分区分布式优化

Adaptive Zoning and Distributed Optimization of Multi-microgrid-containing Distribution Systems

随着新能源在配电网中的高度渗透,配电网运行和调度方法将发生根本性转变。微网作为一种可有效整合分布式资源的单元,近年来发展迅速。面向含多微网的配电系统,提出了一种分布式多目标优化方法。首先,提出了一种基于电压-有功灵敏度矩阵的配电网分区方法。其次,以最小化网损和提高电压质量为目标,构建一个分区多目标模糊优化模型,采用全分布式算法实现分区配电网的并行优化计算。最后,验证了所提出的方法的可行性和有效性。

With the high penetration of distributed new energy sources in distribution networks,the conventional method of distribution network operation and scheduling will undergo fundamental changes.As an integrated unit that can effectively integrate distributed resources,microgrids have been developed rapidly in recent years.In this paper,a two-layer distributed multi-objective fuzzy optimization model is proposed for multi-microgrid-containing distribution systems.First a distribution network zoning method based on voltage-active power sensitivity matrix is established.Second in order to minimize network loss and improve voltage quality,a multi-objective fuzzy optimization model is constructed,and a fully distributed alternating direction multiplier algorithm is used to achieve parallel optimization calculation of regional distribution network.Finally case studies are carried out to verify the feasibility and effectiveness of the proposed method.