{"title":"一种用于单相电池储能系统的新型直流变压器(DCX)及电流纹波抑制策略","authors":"Zhongyuan Peng, Yong Wang, Xixin Fei","doi":"10.1109/ECCE-Asia49820.2021.9479016","DOIUrl":null,"url":null,"abstract":"A high performance bidirectional dc transformer (DCX) is proposed in this paper for connecting energy storage battery and grid-connected inverter. The proposed DCX can not only realize charging and discharging of energy storage battery, but also effectively suppress the high-frequency and low-frequency current ripple in the battery-end. Besides, the LLC resonant tank in the DCX ensures that soft-switching can be achieved for power devices—zero-voltage-switching (ZVS) for power switches and zero-current-switching (ZCS) for rectifier diodes. The proposed DCX shows high performance in efficiency and electromagnetic interference (EMI). The effectiveness of the proposed converter and current ripple suppression strategy are verified by experimental results.","PeriodicalId":145366,"journal":{"name":"2021 IEEE 12th Energy Conversion Congress & Exposition - Asia (ECCE-Asia)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2021-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"A Novel DC Transformer (DCX) for Single-Phase Battery Energy Storage System and Current Ripple Suppression Strategy\",\"authors\":\"Zhongyuan Peng, Yong Wang, Xixin Fei\",\"doi\":\"10.1109/ECCE-Asia49820.2021.9479016\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"A high performance bidirectional dc transformer (DCX) is proposed in this paper for connecting energy storage battery and grid-connected inverter. The proposed DCX can not only realize charging and discharging of energy storage battery, but also effectively suppress the high-frequency and low-frequency current ripple in the battery-end. Besides, the LLC resonant tank in the DCX ensures that soft-switching can be achieved for power devices—zero-voltage-switching (ZVS) for power switches and zero-current-switching (ZCS) for rectifier diodes. The proposed DCX shows high performance in efficiency and electromagnetic interference (EMI). The effectiveness of the proposed converter and current ripple suppression strategy are verified by experimental results.\",\"PeriodicalId\":145366,\"journal\":{\"name\":\"2021 IEEE 12th Energy Conversion Congress & Exposition - Asia (ECCE-Asia)\",\"volume\":\"22 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2021-05-24\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2021 IEEE 12th Energy Conversion Congress & Exposition - Asia (ECCE-Asia)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/ECCE-Asia49820.2021.9479016\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2021 IEEE 12th Energy Conversion Congress & Exposition - Asia (ECCE-Asia)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ECCE-Asia49820.2021.9479016","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
A Novel DC Transformer (DCX) for Single-Phase Battery Energy Storage System and Current Ripple Suppression Strategy
A high performance bidirectional dc transformer (DCX) is proposed in this paper for connecting energy storage battery and grid-connected inverter. The proposed DCX can not only realize charging and discharging of energy storage battery, but also effectively suppress the high-frequency and low-frequency current ripple in the battery-end. Besides, the LLC resonant tank in the DCX ensures that soft-switching can be achieved for power devices—zero-voltage-switching (ZVS) for power switches and zero-current-switching (ZCS) for rectifier diodes. The proposed DCX shows high performance in efficiency and electromagnetic interference (EMI). The effectiveness of the proposed converter and current ripple suppression strategy are verified by experimental results.
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