{"title":"智能负载下双极直流微电网的分布式不平衡电压抑制","authors":"Javad Khodabakhsh, G. Moschopoulos","doi":"10.1109/APEC42165.2021.9487360","DOIUrl":null,"url":null,"abstract":"Bipolar DC microgrids (BDC-MGs) have been developed to improve the performance of conventional DC microgrids (DC-MGs). Voltage unbalances between the positive and negative poles, however, reduce system efficiency, make power flow control more complex, and create issues in hybrid AC-DC microgrids. In general, centralized and distributed approaches are proposed in the literature in order to address the voltage unbalance issues in BDC-MGs. Distributed approaches are more robust against a single point of failure and more scalable than centralized solutions. This paper proposes a new distributed voltage balancing method for BDC-MGs with three-wire loads that are operated as smart loads in BDC-MGs. This method relies on the unused capacity of three-wire power electronic converters in the DC-MGs so that no additional converter is required. The proposed voltage balancing method’s feasibility is confirmed with simulation results obtained from MATLAB/Simulink.","PeriodicalId":7050,"journal":{"name":"2021 IEEE Applied Power Electronics Conference and Exposition (APEC)","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2021-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"3","resultStr":"{\"title\":\"Distributed Unbalanced Voltage Suppression in Bipolar DC Microgrids with Smart Loads\",\"authors\":\"Javad Khodabakhsh, G. Moschopoulos\",\"doi\":\"10.1109/APEC42165.2021.9487360\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Bipolar DC microgrids (BDC-MGs) have been developed to improve the performance of conventional DC microgrids (DC-MGs). Voltage unbalances between the positive and negative poles, however, reduce system efficiency, make power flow control more complex, and create issues in hybrid AC-DC microgrids. In general, centralized and distributed approaches are proposed in the literature in order to address the voltage unbalance issues in BDC-MGs. Distributed approaches are more robust against a single point of failure and more scalable than centralized solutions. This paper proposes a new distributed voltage balancing method for BDC-MGs with three-wire loads that are operated as smart loads in BDC-MGs. This method relies on the unused capacity of three-wire power electronic converters in the DC-MGs so that no additional converter is required. The proposed voltage balancing method’s feasibility is confirmed with simulation results obtained from MATLAB/Simulink.\",\"PeriodicalId\":7050,\"journal\":{\"name\":\"2021 IEEE Applied Power Electronics Conference and Exposition (APEC)\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2021-06-14\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"3\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2021 IEEE Applied Power Electronics Conference and Exposition (APEC)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/APEC42165.2021.9487360\",\"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 Applied Power Electronics Conference and Exposition (APEC)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/APEC42165.2021.9487360","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Distributed Unbalanced Voltage Suppression in Bipolar DC Microgrids with Smart Loads
Bipolar DC microgrids (BDC-MGs) have been developed to improve the performance of conventional DC microgrids (DC-MGs). Voltage unbalances between the positive and negative poles, however, reduce system efficiency, make power flow control more complex, and create issues in hybrid AC-DC microgrids. In general, centralized and distributed approaches are proposed in the literature in order to address the voltage unbalance issues in BDC-MGs. Distributed approaches are more robust against a single point of failure and more scalable than centralized solutions. This paper proposes a new distributed voltage balancing method for BDC-MGs with three-wire loads that are operated as smart loads in BDC-MGs. This method relies on the unused capacity of three-wire power electronic converters in the DC-MGs so that no additional converter is required. The proposed voltage balancing method’s feasibility is confirmed with simulation results obtained from MATLAB/Simulink.
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