基于多智能体一致性的孤岛微网协调二次控制  

Cooperative Secondary Control in an Islanded Microgrid Based on Multi-agent Consistency Protocol

作　　者：万晓凤[1] 涂慧朋 丁小华[1] 曾繁鹏 WAN Xiaofeng;TU Huipeng;DING Xiaohua;ZENG Fanpeng(College of Information Engineering,Nanchang University,Nanchang 330031,Jiangxi,China;Jiangsu Linyang Energy Co.,Ltd.,Qidong 226200,Jiangsu,China)

机构地区：[1]南昌大学信息工程学院,江西南昌330031 [2]江苏林洋能源股份有限公司,江苏启东226200

出　　处：《电气传动》2020年第8期87-92,共6页Electric Drive

基　　金：国家国际科技合作专项(2014DFG72240);江西科技落地计划项目(KJD14006)。

摘　　要：针对孤岛型微电网二次电压和频率控制,提出一种基于多智能体一致性协议的控制策略以使其满足电能质量的要求,保证系统的安全稳定运行。首先,设计分布式微电网控制结构,将各分布式电源看成系统中的智能体,采用一定的有向通信网络拓扑实现智能体之间的相互协调。其次,应用二阶一致性算法于微电网二次控制器中,实现了系统电压和频率恢复至额定值,并进行了稳定性及收敛速度分析。最后,在PSCAD/EMTDC中对孤岛微电网系统建模仿真,其结果验证了所提控制策略的有效性。Aiming at the secondary voltage and frequency control of island-type microgrid,a control strategy based on multi-agent consistency protocol was proposed to meet the requirements of power quality and ensure the safe and stable operation of the system. The distributed microgrid control structure was designed firstly. Each distributed generation was regarded as an intelligent body in the system,and a certain directed communication network topology was used to realize the mutual coordination between the intelligent bodies. Then the second-order consistency algorithm was applied to the secondary controller of the microgrid to restore both voltage and frequency to their reference values,and the stability and convergence speed were analyzed. At last,PSCAD/EMTDC was used for modeling and simulation on the island microgrid system and corresponding results verify the effectiveness of the proposed control strategy.

关 键 词：微电网 孤岛模式 多智能体 一致性协议 二次控制 

分 类 号：TP18[自动化与计算机技术—控制理论与控制工程]