{"title":"Structure and Implementation of a Hybrid 48V/380V DC UPS for IT Datacenters","authors":"S. Pan, Cong Wang, P. Jain","doi":"10.1109/ECCE.2018.8557425","DOIUrl":null,"url":null,"abstract":"DC distribution system has two voltage standards, 48V and 380V. Most of the studies believe that 380V DC distribution is more promising than the 48V DC distribution. this paper will start from comparison of 48V DC and 380V DC system in aspect of overall efficiency, cable cost and loss, and reliability. The results show that the 380V DC system has higher efficiency, while the 48V DC system has higher system reliability. Based on this study, a new DC UPS architecture, which combines the advantages of both the systems, is introduced. Then, a three-port power converter is proposed to implement the proposed hybrid 48V/380V DC UPS Structure. Theoretical analysis, simulation and experimental results validate the operation of the proposed three-port power converter.","PeriodicalId":415217,"journal":{"name":"2018 IEEE Energy Conversion Congress and Exposition (ECCE)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2018 IEEE Energy Conversion Congress and Exposition (ECCE)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ECCE.2018.8557425","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 2
Abstract
DC distribution system has two voltage standards, 48V and 380V. Most of the studies believe that 380V DC distribution is more promising than the 48V DC distribution. this paper will start from comparison of 48V DC and 380V DC system in aspect of overall efficiency, cable cost and loss, and reliability. The results show that the 380V DC system has higher efficiency, while the 48V DC system has higher system reliability. Based on this study, a new DC UPS architecture, which combines the advantages of both the systems, is introduced. Then, a three-port power converter is proposed to implement the proposed hybrid 48V/380V DC UPS Structure. Theoretical analysis, simulation and experimental results validate the operation of the proposed three-port power converter.
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