{"title":"Comparison of Power Swing Characteristics and Efficacy Analysis of Impedance-Based Detections in Synchronous Generators and Grid-Following Systems","authors":"Yongxin Xiong;Heng Wu;Yifei Li;Xiongfei Wang","doi":"10.1109/TPWRS.2024.3469235","DOIUrl":null,"url":null,"abstract":"This paper presents a theoretical comparison of power swing characteristics between conventional synchronous generator (SG)-based systems and grid-following-voltage source converter (GFL-VSC) systems. Unlike conventional SG-based systems where the swing dynamics are characterized by the change of physical angle between different power sources, the swing characteristics in GFL-VSC systems are influenced by the control dynamic of the VSC, and the loss of synchronization is characterized by the divergence of the output angle of the phase-locked loop, which is control-dependent. Building on these insights, this paper further explores the performance and efficacy of impedance-based swing-detecting schemes at GFL-VSC systems. To validate the correctness of the comprehensive analysis, different simulations are carried out using the PSCAD/EMTDC platform, both in single-machine and multi-machine systems.","PeriodicalId":13373,"journal":{"name":"IEEE Transactions on Power Systems","volume":"40 3","pages":"2545-2556"},"PeriodicalIF":7.2000,"publicationDate":"2024-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"IEEE Transactions on Power Systems","FirstCategoryId":"5","ListUrlMain":"https://ieeexplore.ieee.org/document/10695804/","RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, ELECTRICAL & ELECTRONIC","Score":null,"Total":0}
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Abstract
This paper presents a theoretical comparison of power swing characteristics between conventional synchronous generator (SG)-based systems and grid-following-voltage source converter (GFL-VSC) systems. Unlike conventional SG-based systems where the swing dynamics are characterized by the change of physical angle between different power sources, the swing characteristics in GFL-VSC systems are influenced by the control dynamic of the VSC, and the loss of synchronization is characterized by the divergence of the output angle of the phase-locked loop, which is control-dependent. Building on these insights, this paper further explores the performance and efficacy of impedance-based swing-detecting schemes at GFL-VSC systems. To validate the correctness of the comprehensive analysis, different simulations are carried out using the PSCAD/EMTDC platform, both in single-machine and multi-machine systems.
期刊介绍：
The scope of IEEE Transactions on Power Systems covers the education, analysis, operation, planning, and economics of electric generation, transmission, and distribution systems for general industrial, commercial, public, and domestic consumption, including the interaction with multi-energy carriers. The focus of this transactions is the power system from a systems viewpoint instead of components of the system. It has five (5) key areas within its scope with several technical topics within each area. These areas are: (1) Power Engineering Education, (2) Power System Analysis, Computing, and Economics, (3) Power System Dynamic Performance, (4) Power System Operations, and (5) Power System Planning and Implementation.
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