采用分布式单纯形法的微电网分散式动态经济调度  

Decentralized dynamic economic dispatch of microgrids using distributed simplex method

作　　者：王志军 刘明波[1] WANG Zhijun;LIU Mingbo(School of Electric Power Engineering,South China University of Technology,Guangzhou 510640,China)

机构地区：[1]华南理工大学电力学院,广东广州510640

出　　处：《电力系统保护与控制》2018年第15期1-8,共8页Power System Protection and Control

基　　金：国家重点基础研究发展计划(973计划)(2013CB228205)~~

摘　　要：对含多种分布式电源的微电网,基于分布式单纯形法,提出了一种求解微电网动态经济调度问题的分散式优化算法。通过对目标函数进行线性化,建立了微电网动态经济调度的线性规划模型。将每个分布式电源均视为独立的智能体,从而将线性规划模型中的成本向量和约束方程系数矩阵按智能体进行分块,进而采用分布式单纯形法求解。每次迭代过程中,智能体通过通信网络传递当前解对应的最优基和成本向量。所提算法不需要中央控制器的参与,智能体间具有一定的信息保密性,且通信次数与通信网络的直径成线性增长的关系。最后,以某实际微电网为测试系统,验证了线性化模型的准确性和算法的有效性。To address the microgrid with several kinds of Distributed Energy Resources（DERs）, this paper proposes a decentralized method for solving its Dynamic Economic Dispatch（DED） problem based on distributed simplex method. By leveraging linearization of the objective function, DED problem is converted into a linear programing model. Regarding each DER as an individual agent, the cost vector and constraints coefficient matrix in this model can be partitioned into blocks according to agents. This is convenient to use the distributed simplex method to solve it. During iterations, each agent exchanges the optimal basis and corresponding cost vector with its neighbors through a communication network. Without the participation of the central controller, the privacy information of agents can be protected effectively, and the number of communication rounds grows linearly with the diameter of communication network. Simulation on a real microgrid verifies the accuracy of the linearized model, and demonstrates the effectiveness of the proposed approach.

关 键 词：微电网 动态经济调度 线性规划 分布式单纯形法 分散式优化 

分 类 号：TM73[电气工程—电力系统及自动化]