{"title":"Energy management system with equalization algorithm for distributed energy storage systems in PV-active generator based low voltage DC microgrids","authors":"N. Díaz, A. Luna, J. Vasquez, Josep M. Guerrero","doi":"10.1109/ICDCM.2015.7152057","DOIUrl":null,"url":null,"abstract":"This paper presents a centralized strategy for equalizing the state of charge of distributed energy storage systems in an islanded DC microgrid. The proposed strategy is based on a simple algorithm called equalization algorithm, which modifies the charge or discharge rate by weighting the virtual resistor of local droop control loops at each distributed energy storage system. The proposed strategy, can be used as an additional function of the microgrid energy management system where the state of charge of distributed ESS is equalized within a determined window of time. Finally, real-time simulation results of a low voltage DC microgrid are presented in order to verify the performance of the proposed approach.","PeriodicalId":110320,"journal":{"name":"2015 IEEE First International Conference on DC Microgrids (ICDCM)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2015-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2015 IEEE First International Conference on DC Microgrids (ICDCM)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ICDCM.2015.7152057","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
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Abstract
This paper presents a centralized strategy for equalizing the state of charge of distributed energy storage systems in an islanded DC microgrid. The proposed strategy is based on a simple algorithm called equalization algorithm, which modifies the charge or discharge rate by weighting the virtual resistor of local droop control loops at each distributed energy storage system. The proposed strategy, can be used as an additional function of the microgrid energy management system where the state of charge of distributed ESS is equalized within a determined window of time. Finally, real-time simulation results of a low voltage DC microgrid are presented in order to verify the performance of the proposed approach.
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