张健,周建萍,茅大钧,葛祥一,叶剑桥,方乐
ZHANG Jian,ZHOU Jianping,MAO Dajun,GE Xiangyi,YE Jianqiao,FANG Le

• 1:上海电力大学自动化工程学院

摘要(Abstract)：

传统的下垂控制策略会导致孤岛微电网系统稳态的频率和电压偏移,且存在依赖于周期性通信、通信负担大等问题。对此,提出一种基于分布式事件触发的电压和频率二次协调控制策略。该策略针对多智能体的一致性追踪同步问题,将微电网中DG(分布式电源)视为多智能体系统中的智能体,将二次频率和电压作为追踪同步目标。所提出的控制策略仅要求分布式控制器之间在事件发生时刻进行通信,有效节约了通信资源,同时还具有频率和电压恢复功能以及准确的有功功率比例分配。采用Lyapunov方法分析了二次协调控制的稳定性和可行性,并通过孤岛微电网测试系统验证了所提控制方法的正确性和可行性。
The traditional droop control strategy of islanded microgrid leads to steady-state frequency and voltage deviation, and dependency on periodical communication and heavy communication load. Therefore,the paper proposes a secondary coordinated control strategy based on distributed event trigger, which, in view of tracking and synchronous consensus of multi-agent system, regards DG(distributed generation) of microgrid as an agent in the multi-agent system and secondary frequency and voltage as targets of tracking and synchronization. The proposed control strategy only requires communication between distributed controllers at the time of the event, which effectively saves communication resources and enables frequency and voltage restoration as well as precise rate distribution of active power. The stability and feasibility of secondary coordinated control strategy are analyzed through Lyapunov function, and it was verified by microgrid testing system that the proposed method is correct and workable.

关键词(KeyWords)： 孤岛微电网;多智能体系统;分布式事件触发控制;二次协调控制
islanded microgrid;multi-agent system;distributed event-triggered control;secondary coordinated control

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金项目（61275038）;; 上海市“科技创新行动计划”地方院校能力建设专项项目（19020500700）

作者(Author): 张健,周建萍,茅大钧,葛祥一,叶剑桥,方乐
ZHANG Jian,ZHOU Jianping,MAO Dajun,GE Xiangyi,YE Jianqiao,FANG Le

DOI: 10.19585/j.zjdl.202104001

参考文献(References)：

• [1] 于国星,侯睿,汪任潇,等.孤岛微网分层分布式频率调节及功率优化控制[J].电力系统自动化,2020,44(7):53-66.
• [2] 黄鑫,汪可友,李国杰,等.含多并联组网DG的微电网分层控制体系及控制策略[J].中国电机工程学报,2019,39(13):3766-3776.
• [3] 陈萌,肖湘宁,赖柏竹.基于虚拟同步发电机控制的微电网分层频率控制[J].高电压技术,2018,44(4):1278-1284.
• [4] 杨新法,苏剑,吕志鹏,等.微电网技术综述[J].中国电机工程学报,2014,34(1):57-70.
• [5] 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.
• [6]AHUMADA C,CARDENAS R,SAEZ D,et al.Secondary control strategies for frequency restoration in islanded microgrids with consideration of communication delays[J].IEEE Transactions on Smart Grid,2016,7(3):1430-1441.
• [7]OLIVARES D E,et al.Trends in microgrid control[J].IEEE Transactions on Smart Grid,2014,5(4):1905-1919.
• [8]BIDRAM A,DAVOUDI A,LEWIS F L,et al.Secondary control of microgrids based on distributed cooperative control of multi-agent systems[J].IET Generation,Transmission & Distribution,2013,7(8):822-831.
• [9]BIDRAM A,DAVOUDI A,LEWIS F L,et al.Distributed cooperative secondary control of microgrids using feedback linearization[J].IEEE Transaction on Power System,2013,28(3):3462-3470.
• [10] 陈刚,李志勇,韦梦立.孤岛微电网的分布式固定时间二次协调控制[J].控制与决策,2019,34(1):205-212.
• [11]SIMPSON-PORCO J W,et al.Secondary frequency and voltage control of islanded microgrids via distributed averaging[J].IEEE Transaction on Industrial Electronics,2015,62(11):7025-7038.
• [12] 陈萌,肖湘宁.基于分布式内模设计的微电网协调二次控制策略[J].电工技术学报,2017,32(10):145-153.
• [13] 吕振宇,苏晨,吴在军,等.孤岛型微电网分布式二次调节策略及通信拓扑优化[J].电工技术学报,2017,32(6):209-219.
• [14] 何红玉,范丽,韩蓓,等.基于一致性协议的多微网协调控制[J].电网技术,2017,41(4):1269-1276.
• [15] 张志强,王龙.多智能体系统的事件驱动控制[J].控制理论与应用,2018,35(8):1051-1065.
• [16] 郭伟,赵洪山.基于事件触发机制的直流微电网多混合储能系统分层协调控制方法[J].电工技术学报,2020,35(5):1140-1151.
• [17] 白小丹,苗虹,曾成碧,等.适用于低压微网中逆变器无功均分的改进下垂控制策略[J].高电压技术,2020,46(4):1310-1318.
• [18] 李欣煜,周建萍,李泓青,等.基于粒子群算法的微电网实时功率均分的改进下垂控制策略[J].高电压技术,2018,44(10):3425-3432.
• [19] 朱珊珊,汪飞,郭慧,等.直流微电网下垂控制技术研究综述[J].中国电机工程学报,2018,38(1):72-78.
• [20] 高杨,艾芊,王靖.多智能体系统的交直流混合微网群一致性协同控制[J].高电压技术,2018,44(7):2372-2377.
• [21] 黄红伟,黄天民.事件触发机制下的多智能体领导跟随一致性[J].计算机工程与应用,2017,53(6):29-33.
• [22]郭贤珊,王晖,卜广全,等.大规模新能源经张北柔直孤岛送出的虚拟频率研究[J].电力工程技术,2020,39(3):2-7.
• [23]杨茂,王金鑫.需求侧管理参与的孤岛型微电网多目标优化调度[J].电网与清洁能源,2020,36(2):1-11.
• [24]陈大林,范绚然,赵健,等.向孤岛电网供电的柔性直流逆变站综合控制策略[J].电力工程技术,2020,39(1):57-63.
• [25]郭潇潇,李岚,程之隆,等.风电孤岛模式下混合储能装置调频调压策略[J].电网与清洁能源,2019,35(10):96-102.
• [26]曹佳男,高辉,虞小辉.微电网孤岛运行能量优化策略研究[J].电器与能效管理技术,2019(19):76-82.
• [27]孙晓哲.石油钻机光储柴供电系统运行控制策略[J].发电技术,2019,40(5):469-474.
• [28]蔡文超,高敏.交直流混合微电网中双向变换器改进下垂控制研究[J].内蒙古电力技术,2019,37(1):25-30.