{"title":"Research on grid-connected/islanding smooth switching of micro-grid based on energy storage","authors":"Yanhua Liu, N. Zhang, Xu Zhang","doi":"10.1109/POWERCON.2012.6401433","DOIUrl":null,"url":null,"abstract":"The micro-grid is an approach to solve distributed generations interconnecting with power grid. Wind-PV-ES hybrid system could make full use of clean energy and have high reliability. Smooth switching between grid-connected and islanding mode is important to micro-grid stable operation. This paper proposes an improved control strategy combining master-slave control with peer-to-peer control in order to make transition between grid-connected and islanding mode smoother. A micro-grid model based on wind-PV-ES hybrid system is built with DigSILENT/PowerFactory, and the improved control strategy is realized on it. The result shows that this improved control strategy can ensure power balance, and keep connected bus voltage and micro-grid frequency stable during micro-grid mode switching.","PeriodicalId":176214,"journal":{"name":"2012 IEEE International Conference on Power System Technology (POWERCON)","volume":"129 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2012-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"8","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2012 IEEE International Conference on Power System Technology (POWERCON)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/POWERCON.2012.6401433","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 8
Abstract
The micro-grid is an approach to solve distributed generations interconnecting with power grid. Wind-PV-ES hybrid system could make full use of clean energy and have high reliability. Smooth switching between grid-connected and islanding mode is important to micro-grid stable operation. This paper proposes an improved control strategy combining master-slave control with peer-to-peer control in order to make transition between grid-connected and islanding mode smoother. A micro-grid model based on wind-PV-ES hybrid system is built with DigSILENT/PowerFactory, and the improved control strategy is realized on it. The result shows that this improved control strategy can ensure power balance, and keep connected bus voltage and micro-grid frequency stable during micro-grid mode switching.
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