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基于一致性算法的微电网群分布式经济调度

来源：电工电气发布时间：2024-08-30 09:30 浏览次数：20

基于一致性算法的微电网群分布式经济调度

管俊杰，陈根，颜毅斌

(湖南铁路科技职业技术学院，湖南株洲 412006)

摘要：针对孤岛微电网群的经济调度问题，基于一致性算法提出一种微电网群分布式经济调度方法。该方法将孤岛微电网群经济调度建模为子微网间和子微网内调度两层，子微网间调度以各子微网增量成本为一致性变量，基于平均一致性算法分布式求解，实现互济模式下各子微网互济功率的最优分配；子微网内调度以各分布式电源增量成本为一致性变量，并以子微网间互济功率分配为约束，基于领导-跟随一致性算法分布式求解。该方法通过两层调度实现，能发挥子微网间功率互济优势的同时保持子微网的独立性，并且仅需利用局部信息交互实现优化调度，灵活性高。通过算例仿真验证了所提分布式经济调度方法的有效性。

关键词： 微电网群；经济调度；一致性算法；分布式优化

中图分类号：TM715 ；TM734 文献标识码：A 文章编号：1007-3175(2024)08-0064-07

Distributed Economic Dispatch of Microgrid Cluster

Based on Consensus Algorithm

GUAN Jun-jie, CHEN Gen, YAN Yi-bin

（Hunan Vocational College of Railway Technology, Zhuzhou 412006, China）

Abstract: Aiming at the economic dispatch problem of islanded microgrid cluster, a distributed economic dispatch method for microgrid cluster based on consensus algorithm is proposed. In this method, the economic dispatch of islanded microgrid cluster is modeled as two layers:inter-sub-microgrids dispatch layer and sub-microgrid dispatch layer. The inter-sub-microgrid dispatch layer selects the incremental cost of sub-microgrid as the consensus variable, and the average consensus algorithm is used to solve the model, so as to optimally allocating the power of mutual assistance between sub-microgrids under the mode of mutual assistance. The inter-sub-microgrid dispatch layer regards the incremental cost of each distributed generation as the consensus variable, and takes the mutual power allocation between inter-sub-microgrids as the constraint, leader-following consensus algorithm is used to solve the model. This method is realized by two-layer dispatch, which can give full play to the advantages of power mutual assistance between inter-sub-microgrids while maintaining the independence of sub-microgrids.Moreover, this method only needs to use local information interaction to achieve optimal dispatch, it has high flexibility. Finally, the effectiveness of the proposed distributed economic dispatch method is verified by numerical simulations.

Key words: microgrid cluster; economic dispatch; consensus algorithm; distributed optimization

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