电力系统自动化2016，Vol.40Issue(24)：49-55,84,8.DOI:10.7500/AEPS20160216006
基于有限时间一致性的直流微电网分布式协同控制
Finite-time Consensus Based Distributed Cooperative Control for DC Microgrids
摘要
Abstract
Two control obj ectives in DC microgrids are to maintain the stability of voltage and proportional power sharing. While there is an internal trade-off between voltage regulation and power sharing in the conventional droop control and centralized control is excessively dependent on the central controller.A finite-time consensus based distributed cooperative control is proposed for DC microgrids.On the basis of the droop control a distributed secondary control is introduced which includes a current correct control and a voltage regulate control.The strategy is based on the multi-agent system and its distributed interaction protocol.Each DG agent only interchanges output current information with its neighbors.Proportional power sharing is achieved through a finite-time consensus protocol.The voltage is regulated by using the average current.The proposed control scheme is implemented in the fully distributed manner can meet the requirements of plug and play and the finite-time consensus algorithm has a better convergence performance.To verify the effectiveness of the scheme a detailed model of DC microgrid is built in PSCAD EMTDC.Simulation results indicate that the proposed scheme can effectively achieve the control obj ectives of voltage regulation and proportional power sharing in DC microgrids.关键词
直流微电网/多代理系统/有限时间一致性/下垂控制/分布式控制Key words
DC microgrid/multi-agent system/finite-time consensus/droop control/distributed control引用本文复制引用
顾伟,薛帅,王勇,柳伟,陈明,曹戈..基于有限时间一致性的直流微电网分布式协同控制[J].电力系统自动化,2016,40(24):49-55,84,8.基金项目
国家自然科学基金资助项目(51477029) （51477029）
国家重点研发计划资助项目(2016YFB0900404).This work is supported by National Natural Science Foundation of China No.51477029 and National Key Research and Development Program of China No.2016YFB0900404 （2016YFB0900404）
