山东电力技术2024，Vol.51Issue(3)：8-17,10.DOI:10.20097/j.cnki.issn1007-9904.2024.03.002
城市应急微网群管控关键技术综述
Review of Key Technologies for Urban Emergency Microgrid Cluster Management and Control
摘要
Abstract
When a large-scale power outage occurs in the urban power grid,microgrids containing electric vehicles,distributed power sources,etc.can build an emergency microgrid cluster to ensure the continuous power supply of key loads.However,high proportion of new energy and high degree of power electronization make the emergency microgrid cluster face the stability challenges of transient voltage and frequency in operation.In the process of microgrid cluster energy management,transient security and stability constraints need to be considered.The transient security and stability domain of microgrid clusters has strong nonlinearity,and the differential regulation characteristics of discrete and continuous devices,as well as the computing power and communication methods of energy management terminals,make it difficult to consider security and stability regulation.According to the internal logic of"dynamic modeling-stability analysis-coordinated regulation",the following review was carried out around the coordinated regulation of urban emergency microgrid cluster considering transient security and stability constraints.1)The dynamic modeling methods of microgrid considering the wide frequency domain and non-smooth control characteristics of the converter.2)The mechanism and criterion of voltage and frequency transient security and stability of microgrid cluster.3)Distributed optimal control method of microgrid cluster considering transient security and stability constraints,information interaction delay and discrete-continuous hybrid characteristics.Based on the above three aspects,the shortcomings and development direction of the current research on the security and stability of urban emergency microgrid cluster and the operation of low-carbon economy were expounded.关键词
韧性电网/配电网/微电网建模/微电网稳定控制Key words
resilient power grid/distribution network/modeling of microgrid/stability control of microgrid分类
信息技术与安全科学引用本文复制引用
巨云涛,李子怡..城市应急微网群管控关键技术综述[J].山东电力技术,2024,51(3):8-17,10.基金项目
国家电网有限公司科技项目"十兆瓦级离网型微电网源网荷储协同规划及控制技术研究"(5400-2023823A-4-1-KJ).Science and Technology Project of State Grid Corporation of China"Research on Source-grid-load-storage Collaborative Planning and Control Technology of Ten-megawatt Off-grid Microgrid"(5400-2023823A-4-1-KJ). （5400-2023823A-4-1-KJ）
