基于交替方向乘子的多能互补微电网分布式最优潮流调度  

Distributed Optimal Power Flow Dispatch of Multi-Energy Complementary Microgrid Based on Alternating Direction Multiplier

作　　者：吴奎华 李文升 吴肇赟 冯亮 杨波 田浩[3] WU Kuihua;LI Wensheng;WU Zhaoyun;FENG Liang;YANG Bo;TIAN Hao(Economic and Technological Research Institute of State Grid Shandong Electric Power Company,Jinan 250021,Shandong,China;Beijing Huisi Huineng Technology Co.,Ltd.,Beijing 100080,China;State Key Lab of Control and Simulation of Power Systems and Generation Equipment,Department of Electrical Engineering,Tsinghua University,Beijing 100084,China)

机构地区：[1]国网山东省电力公司经济技术研究院,山东济南250021 [2]北京汇思慧能科技有限公司,北京100080 [3]清华大学电机系,电力系统及发电设备控制和仿真国家重点实验室,北京100084

出　　处：《电网与清洁能源》2022年第11期35-44,共10页Power System and Clean Energy

基　　金：国网山东省电力公司科技项目(2020A-007)。

摘　　要：针对常规分布式最优潮流无法直接应用多微电网系统等问题,提出了一种基于交替方向乘子的多微电网协同最优潮流调度算法。算法给出各发电单元的成本函数和运行约束,以此为基础,提出多微电网间联络线潮流方程及连接点平衡约束,建立多微电网协同最优潮流模型;利用平均协商确定各微电网边界变量目标值,借助交替方向乘子法对多微电网进行协同最优潮流调度。仿真实验表明,算法在无中心协调和全局通信下实现了多微电网的最优潮流调度,同时验证了算法的收敛性和一致性,与相关潮流调度算法相比有较高的调度和协同优势,并且最优间隙至少保持在2.6×10以内。Aiming at the problem that the conventional distributed optimal power flow cannot be directly applied to the multi-microgrid system,a multi-microgrid coordinated optimal power flow dispatching algorithm based on alternating direction multiplier is proposed. The algorithm first gives the cost function and operation constraints of each power generation unit. Based on this,the tie line power flow equations and connection point balance constraints between multiple microgrids are proposed,and the multi-microgrid coordinated optimal power flow model is established. The target value of the boundary variables of each microgrid is determined by average negotiation,and the coordinated optimal power flow dispatching of multiple microgrids is realized by means of the alternating direction multiplier method. The simulation experiments show that the algorithm realizes the optimal power flow dispatching of multiple microgrids without central coordination and global communication. At the same time,it verifies the convergence and consistency of the algorithm. Compared with related power flow dispatching algorithms,it has higher dispatching and synergy advantages,and keeps the optimal gap at least within 2.6×10.

关 键 词：多微电网 最优潮流 交替方向乘子 分布式协同 平均协商 

分 类 号：TM732[电气工程—电力系统及自动化]