引用本文:陈刚,李志勇,赵中原.微电网系统的分布式优化下垂控制[J].控制理论与应用,2016,33(8):999~1006.[点击复制]
CHEN Gang,LI Zhi-yong,ZHAO Zhong-yuan.Distributed optimal droop control in micro-grid systems[J].Control Theory and Technology,2016,33(8):999~1006.[点击复制]
微电网系统的分布式优化下垂控制
Distributed optimal droop control in micro-grid systems
摘要点击 4087  全文点击 3045  投稿时间:2015-12-11  修订日期:2016-09-07
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DOI编号  10.7641/CTA.2016.50983
  2016,33(8):999-1006
中文关键词  微电网系统  分布式控制  经济调度  一致性  下垂控制
英文关键词  micro-grid systems  distributed control  economic dispatch  consensus  droop control
基金项目  国家自然科学基金项目(61673077, 61273108), 重庆市基础与前沿研究计划项目(CSTC2016jcyjA0361)资助.
作者单位E-mail
陈刚* 重庆大学 chengang@cqu.edu.cn 
李志勇 重庆大学  
赵中原 重庆大学  
中文摘要
      针对微电网系统运行成本最优化问题, 提出一种分布式优化下垂控制策略. 首先, 基于一致性理论, 给出了 一种分布式经济调度算法. 采用矩阵摄动理论, 分析了经济调度算法的收敛特性. 其次, 基于分布式优化调度解, 设 计一种新的分布式优化下垂控制器. 在满足供需平衡以及各个发电单元运行约束的条件下, 控制策略使得微电网 系统运行成本最低. 同时, 提出的控制策略能够保证孤岛微电网的频率稳定在额定值. 最后, 通过仿真实例, 验证了 分布式优化下垂控制策略的有效性.
英文摘要
      To optimize the operation cost of micro-grid systems, a distributed optimal droop control scheme is proposed in this paper. Firstly, based on the consensus theory, we present a distributed algorithm to solve the economic dispatch problem in micro-grid systems. By virtue of matrix perturbation theory, the convergence property for the proposed economic dispatch algorithm is analyzed. Secondly, based on the distributed economic dispatch solution, an optimal droop controller is designed, which guarantees the supply-demand balance and satisfies the generation constraints of each unit. Moreover, the proposed control scheme can restore the frequency of islanded micro-grid to the nominal value. Finally, the effectiveness of the proposed distributed optimal droop control scheme is verified by the simulation results.