Chuanfeng Liang , Rongliang Shi , Chengwei Ju , Jun hui Li , Yu Zhang
{"title":"具有全阶和二阶的单并网电网成形 VSG 的小信号建模和特性比较分析","authors":"Chuanfeng Liang , Rongliang Shi , Chengwei Ju , Jun hui Li , Yu Zhang","doi":"10.1016/j.jestch.2024.101879","DOIUrl":null,"url":null,"abstract":"<div><div>The single-machine grid-connected grid-forming virtual synchronous generator (GFVSG) small signal mathematical model is divided into full-order and second-order small signal mathematical models according to whether power calculation, voltage plus current bottom double loop and AC filtering are considered in the modeling process. And the difference of mathematical models has an important impact on the accurate analysis of GFVSG grid-connected active power dynamic response characteristics (GCAP-DRCs). For this reason, the full-order and second-order small signal mathematical models of GFVSG grid-connected system are established, then their GCAP-DRCs are compared and analyzed. The results show that the second-order model and the full-order model of GFVSG grid-connected system have similar GCAP-DRCs, thus the second-order model can be directly used to replace the full-order model to study the GCAP-DRCs of GFVSG grid-connected system in engineering applications, so as to simplify the theoretical analysis process. Finally, the correctness of the mathematical model and theoretical analysis is verified by using MATLAB/Simulink software simulation and experiment.</div></div>","PeriodicalId":48609,"journal":{"name":"Engineering Science and Technology-An International Journal-Jestech","volume":"59 ","pages":"Article 101879"},"PeriodicalIF":5.1000,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Small-signal modeling and characteristic comparative analysis for a single grid-connected grid-forming VSG with full-order and second-order\",\"authors\":\"Chuanfeng Liang , Rongliang Shi , Chengwei Ju , Jun hui Li , Yu Zhang\",\"doi\":\"10.1016/j.jestch.2024.101879\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>The single-machine grid-connected grid-forming virtual synchronous generator (GFVSG) small signal mathematical model is divided into full-order and second-order small signal mathematical models according to whether power calculation, voltage plus current bottom double loop and AC filtering are considered in the modeling process. And the difference of mathematical models has an important impact on the accurate analysis of GFVSG grid-connected active power dynamic response characteristics (GCAP-DRCs). For this reason, the full-order and second-order small signal mathematical models of GFVSG grid-connected system are established, then their GCAP-DRCs are compared and analyzed. The results show that the second-order model and the full-order model of GFVSG grid-connected system have similar GCAP-DRCs, thus the second-order model can be directly used to replace the full-order model to study the GCAP-DRCs of GFVSG grid-connected system in engineering applications, so as to simplify the theoretical analysis process. Finally, the correctness of the mathematical model and theoretical analysis is verified by using MATLAB/Simulink software simulation and experiment.</div></div>\",\"PeriodicalId\":48609,\"journal\":{\"name\":\"Engineering Science and Technology-An International Journal-Jestech\",\"volume\":\"59 \",\"pages\":\"Article 101879\"},\"PeriodicalIF\":5.1000,\"publicationDate\":\"2024-11-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Engineering Science and Technology-An International Journal-Jestech\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S2215098624002659\",\"RegionNum\":2,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"ENGINEERING, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Engineering Science and Technology-An International Journal-Jestech","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2215098624002659","RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, MULTIDISCIPLINARY","Score":null,"Total":0}
Small-signal modeling and characteristic comparative analysis for a single grid-connected grid-forming VSG with full-order and second-order
The single-machine grid-connected grid-forming virtual synchronous generator (GFVSG) small signal mathematical model is divided into full-order and second-order small signal mathematical models according to whether power calculation, voltage plus current bottom double loop and AC filtering are considered in the modeling process. And the difference of mathematical models has an important impact on the accurate analysis of GFVSG grid-connected active power dynamic response characteristics (GCAP-DRCs). For this reason, the full-order and second-order small signal mathematical models of GFVSG grid-connected system are established, then their GCAP-DRCs are compared and analyzed. The results show that the second-order model and the full-order model of GFVSG grid-connected system have similar GCAP-DRCs, thus the second-order model can be directly used to replace the full-order model to study the GCAP-DRCs of GFVSG grid-connected system in engineering applications, so as to simplify the theoretical analysis process. Finally, the correctness of the mathematical model and theoretical analysis is verified by using MATLAB/Simulink software simulation and experiment.
期刊介绍：
Engineering Science and Technology, an International Journal (JESTECH) (formerly Technology), a peer-reviewed quarterly engineering journal, publishes both theoretical and experimental high quality papers of permanent interest, not previously published in journals, in the field of engineering and applied science which aims to promote the theory and practice of technology and engineering. In addition to peer-reviewed original research papers, the Editorial Board welcomes original research reports, state-of-the-art reviews and communications in the broadly defined field of engineering science and technology.
The scope of JESTECH includes a wide spectrum of subjects including:
-Electrical/Electronics and Computer Engineering (Biomedical Engineering and Instrumentation; Coding, Cryptography, and Information Protection; Communications, Networks, Mobile Computing and Distributed Systems; Compilers and Operating Systems; Computer Architecture, Parallel Processing, and Dependability; Computer Vision and Robotics; Control Theory; Electromagnetic Waves, Microwave Techniques and Antennas; Embedded Systems; Integrated Circuits, VLSI Design, Testing, and CAD; Microelectromechanical Systems; Microelectronics, and Electronic Devices and Circuits; Power, Energy and Energy Conversion Systems; Signal, Image, and Speech Processing)
-Mechanical and Civil Engineering (Automotive Technologies; Biomechanics; Construction Materials; Design and Manufacturing; Dynamics and Control; Energy Generation, Utilization, Conversion, and Storage; Fluid Mechanics and Hydraulics; Heat and Mass Transfer; Micro-Nano Sciences; Renewable and Sustainable Energy Technologies; Robotics and Mechatronics; Solid Mechanics and Structure; Thermal Sciences)
-Metallurgical and Materials Engineering (Advanced Materials Science; Biomaterials; Ceramic and Inorgnanic Materials; Electronic-Magnetic Materials; Energy and Environment; Materials Characterizastion; Metallurgy; Polymers and Nanocomposites)
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