{"title":"弱电网下多VSCs系统的小信号建模及相互作用分析","authors":"Yunhui Huang;Fuen Chen;Dong Wang;Sidong Zhang;Guorong Zhu;Keliang Zhou","doi":"10.24295/CPSSTPEA.2023.00008","DOIUrl":null,"url":null,"abstract":"This paper studies the modeling and interaction of the multi-VSCs (VSC, voltage source converter) system connected to the weak grid. To start with, the small-signal model of the multi-VSCs in DC voltage timescale in the weak grid is established based on the dynamic characteristics analysis method. Self-impact components and interaction-impact components are proposed to define the interaction between multi-VSCs. Furthermore, by studying the self-impact and interaction-impact components of each VSC with varied grid strengths, phase-locked loop bandwidths and terminal voltage control bandwidths, the influence mechanism of control systems on the interaction among VSCs is revealed out. Finally, detailed time-domain simulation and semi-physical models are built in Matlab/Simulink and Starsim respectively to verify the results of the multi-VSCs interaction analysis.","PeriodicalId":100339,"journal":{"name":"CPSS Transactions on Power Electronics and Applications","volume":"8 1","pages":"74-86"},"PeriodicalIF":0.0000,"publicationDate":"2023-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/iel7/7873541/10098701/10098706.pdf","citationCount":"0","resultStr":"{\"title\":\"Small Signal Modeling and Interaction Analysis of Multi-VSCs System Connected to Weak Grid\",\"authors\":\"Yunhui Huang;Fuen Chen;Dong Wang;Sidong Zhang;Guorong Zhu;Keliang Zhou\",\"doi\":\"10.24295/CPSSTPEA.2023.00008\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"This paper studies the modeling and interaction of the multi-VSCs (VSC, voltage source converter) system connected to the weak grid. To start with, the small-signal model of the multi-VSCs in DC voltage timescale in the weak grid is established based on the dynamic characteristics analysis method. Self-impact components and interaction-impact components are proposed to define the interaction between multi-VSCs. Furthermore, by studying the self-impact and interaction-impact components of each VSC with varied grid strengths, phase-locked loop bandwidths and terminal voltage control bandwidths, the influence mechanism of control systems on the interaction among VSCs is revealed out. Finally, detailed time-domain simulation and semi-physical models are built in Matlab/Simulink and Starsim respectively to verify the results of the multi-VSCs interaction analysis.\",\"PeriodicalId\":100339,\"journal\":{\"name\":\"CPSS Transactions on Power Electronics and Applications\",\"volume\":\"8 1\",\"pages\":\"74-86\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2023-03-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://ieeexplore.ieee.org/iel7/7873541/10098701/10098706.pdf\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"CPSS Transactions on Power Electronics and Applications\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://ieeexplore.ieee.org/document/10098706/\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"CPSS Transactions on Power Electronics and Applications","FirstCategoryId":"1085","ListUrlMain":"https://ieeexplore.ieee.org/document/10098706/","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Small Signal Modeling and Interaction Analysis of Multi-VSCs System Connected to Weak Grid
This paper studies the modeling and interaction of the multi-VSCs (VSC, voltage source converter) system connected to the weak grid. To start with, the small-signal model of the multi-VSCs in DC voltage timescale in the weak grid is established based on the dynamic characteristics analysis method. Self-impact components and interaction-impact components are proposed to define the interaction between multi-VSCs. Furthermore, by studying the self-impact and interaction-impact components of each VSC with varied grid strengths, phase-locked loop bandwidths and terminal voltage control bandwidths, the influence mechanism of control systems on the interaction among VSCs is revealed out. Finally, detailed time-domain simulation and semi-physical models are built in Matlab/Simulink and Starsim respectively to verify the results of the multi-VSCs interaction analysis.
求助内容：
应助结果提醒方式：
京公网安备 11010802042870号
