{"title":"A bypass transfer method for UPS system","authors":"Keisuke Nakano, O. Iyama","doi":"10.1109/INTLEC.2015.7572497","DOIUrl":null,"url":null,"abstract":"This paper proposes a bypass transfer method without parallel feeding between utility power line and uninterruptible power supply (UPS). This system has ACSWs consists of a bi-directional thyristor and a magnetic contactor both utility power line and UPS line. The control board observes the condition of utility power and UPS to operate ACSWs. A proposed method has instantaneous interruptible period purposely. Therefore, it can be transferred to each line instantaneously without additional reactor or complex control system. Its effectiveness is verified through Experiment in a 4kW prototype. It can be transferred each other only 500μsec interruption without parallel feeding periods.","PeriodicalId":211948,"journal":{"name":"2015 IEEE International Telecommunications Energy Conference (INTELEC)","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2015 IEEE International Telecommunications Energy Conference (INTELEC)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/INTLEC.2015.7572497","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
This paper proposes a bypass transfer method without parallel feeding between utility power line and uninterruptible power supply (UPS). This system has ACSWs consists of a bi-directional thyristor and a magnetic contactor both utility power line and UPS line. The control board observes the condition of utility power and UPS to operate ACSWs. A proposed method has instantaneous interruptible period purposely. Therefore, it can be transferred to each line instantaneously without additional reactor or complex control system. Its effectiveness is verified through Experiment in a 4kW prototype. It can be transferred each other only 500μsec interruption without parallel feeding periods.