一种互联微电网群的频率分布式协调控制策略  

A Frequency Distributed Coordinated Control Strategy for Interconnected Microgrid Clusters

作　　者：王义昌 李波[2] 余艳 陈静 WANG Yi-chang;LI Bo;YUYan;CHEN Jing(Zhaotong Power Supply Bureau of Yunnan Power Grid Co.,Ltd.,Zhaotong 657000,China;不详)

机构地区：[1]云南电网有限责任公司昭通供电局,云南昭通657000 [2]华南理工大学,广东广州510630

出　　处：《电力电子技术》2024年第5期95-99,共5页Power Electronics

基　　金：云南省科技厅地方高校联合专项基金(202101-BA070001-243)。

摘　　要：多个微电网常常采用电压源型变流器(VSC)进行柔性互联,以增强系统运行的可靠性,但同时也带来了多个微电网间的频率解耦问题。为此,基于多智能体思想,提出了一种基于VSC互联的多微电网群频率的一致性控制策略。所提策略通过微电网间的电压源型变流器来实现多微电网间频率的相互支撑,并基于一致性控制理论来协调多个微电网内的可控单元,不仅能实现微电网频率的快速恢复,还能实现微电网内的扰动由多个微电网按容量承担,提高了系统的稳定系性。最后,通过实验验证了所提策略的可行性。Multiple microgrids often use voltage source converters(VSC)for flexible interconnection to enhance the reliability of system operation,but it also brings about frequency decoupling issues between multiple microgrids.Therefore,a consistency control strategy for multi microgrid frequency is proposed based on VSC interconnection,based on the idea of multi-agent.The proposed strategy achieves mutual support of frequencies among multiple microgrids through voltage source converters between microgrids,and coordinates controllable units within multiple microgrids based on consistency control theory,this not only achieves rapid recovery of microgrid frequencies,but also enables disturbances within the microgrid to be borne by multiple microgrids according to their capacity,improving the stability of the system.Finally,the feasibility of the proposed strategy is verified through experiments.

关 键 词：电压源型变流器 微电网 频率解耦 

分 类 号：TM46[电气工程—电器]