基于超节点协同一致性算法的分布式电源经济调度策略研究  

Economic Dispatch Algorithm for Distributed Power Based on Super Node Collaborative Consistency Algorithm

作　　者：李红[1] 董海鹰[1] LI Hong;DONG Hai-ying(School of Automation and Electrical Engineering,Lanzhou Jiaotong University,Lanzhou 730070,China)

机构地区：[1]兰州交通大学自动化与电气工程学院,兰州730070

出　　处：《兰州交通大学学报》2022年第5期52-60,共9页Journal of Lanzhou Jiaotong University

摘　　要：随着电力系统分布式电源的增加,分布式一致性算法经济调度以高可靠性、扩展性好等优点在分布式电源经济调度、公共接入点有功、无功协同控制等方面得到了广泛应用.针对分布式电源协同一致性算法的收敛速度问题,提出了基于超节点协同一致性算法的分布式电源的经济调度算法.首先,在原有分布式电源网络通信拓扑图的基础上,对超节点进行选取与局部集划分,对原有的图进行降维与重建;然后,将超节点之间利用协同控制算法获取稳态值后,再将其值传递给局部集内各节点,使所有分布式电源节点的最大输出值与实际输出值的比值达到渐进一致性;最后,搭建14节点配电网系统仿真模型,并在该模型上对算法进行仿真验证.仿真结果表明:该算法在不失系统鲁棒性的前提下,可以有效地提高分布电源协同一致性算法的收敛速度,并降低了计算复杂度.With the increase of distributed generation in power system, distributed consistency algorithm economic scheduling has been widely used in distributed generation economic scheduling, public access point active and reactive power collaborative control and so on.In order to improve the convergence speed of distributed generation cooperative consistency algorithm, an economic scheduling algorithm of distributed generation based on super node cooperative consistency algorithm is proposed.Firstly, based on the original distributed generation network communication topology, the super nodes and the local set are selected, and the original topology is dimensionally reduced and reconstructed;Secondly, the steady-state value of the super nodes is determined by the convergence algorithm and transmitted to each node in the local set.Thus, the ratio between the maximum output value and the actual output value of all distributed power nodes can reach a steady convergence. Finally, a fourteen-nodes distribution network system simulation model is built, in which the algorithm is simulated and verified.Simulation results show that the algorithm can effectively improve the convergence speed of distributed power supply cooperative consistency algorithm and reduce the calculation complexity without losing the robustness of the system.

关 键 词：分布式电源 一致性算法 经济调度 超节点 

分 类 号：TM731[电气工程—电力系统及自动化]