摘要
考虑到现有微电网一致性多目标调度没有考虑柔性负荷的参与,且存在收敛速度较慢的不足。不同于传统的一致性算法,文中基于有向通信,采用快速一致性算法解决含柔性负荷参与的综合考虑环保与经济的微电网多目标调度问题。首先,综合考虑发电机发电成本、污染气体排放、储能成本、柔性负荷用电效益及传输损耗,对多目标调度问题建立系统且全面的数学模型;其次,利用线性加权将建立的多目标问题转化为单目标问题,采用拉格朗日法求得目标函数的最优解;最后,采用引入的领导⁃跟随快速一致性算法实现了多目标模型的最优调度。仿真结果表明,该策略在保证收敛与应对负荷变动的同时可实现经济与环境的综合最优调度,系统收敛速度与算法的部分参数有关,相比传统一致性算法收敛速度提高了2.2倍左右。
In the existing consensus multi⁃objective dispatching of microgrid,the participation of flexible load is not taken into account,and the convergence rate is slow.Different from the traditional consensus algorithm,on the basis of the directed communication,the fast consensus algorithm is adopted to solve the multi⁃objective dispatching problem of microgrid which is of flexible load participation and takes account of the environmental protection and economy.A systematic and comprehensive mathematical model is established for the multi⁃objective scheduling by taking account of the generator cost,pollution gas emission,energy storage cost,flexible load power consumption benefit and transmission loss.The linear weighting method is used to transform the multi⁃objective problem into single⁃objective problem.The optimal solution of the objective function is obtained by Lagrange method.With the introduction of the leader⁃follower fast consensus algorithm,the optimal dispatching of the proposed model is realized.Simulation examples show that the proposed strategy can realize the comprehensive optimal scheduling of economy and environment while ensuring convergence and coping with load changes;the convergence speed of the system is related with some parameters of the algorithm;the convergence rate is increased by about 2.2 times in comparison with the traditional consensus algorithms.
作者
邵雪莲
陈珍萍
付保川
吴征天
SHAO Xuelian;CHEN Zhenping;FU Baochuan;WU Zhengtian(School of Electronic and Information Engineering,Suzhou University of Science and Technology,Suzhou 215009,China)
出处
《现代电子技术》
2022年第3期135-141,共7页
Modern Electronics Technique
基金
国家自然科学基金项目(51874205)
国家自然科学基金项目(61803279)
江苏省研究生科研与实践创新计划项目(SJCX19_0846)
关键词
微电网
多目标调度
柔性负荷
传输损耗
有向通信
一致性算法
收敛速度
microgrid
multi⁃objective dispatch
flexible load
transmission loss
directed communication
consensus algorithm
convergence rate
