并网虚拟同步发电机的新型故障穿越策略:功率角稳定性增强和电流限制

IF 5 2区 工程技术 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC International Journal of Electrical Power & Energy Systems Pub Date : 2024-10-14 DOI:10.1016/j.ijepes.2024.110293
Siqi Liu , Pengfei Hu , Yanxue Yu , Zheng Chen , Daozhuo Jiang , Wenbin Lin
{"title":"并网虚拟同步发电机的新型故障穿越策略:功率角稳定性增强和电流限制","authors":"Siqi Liu ,&nbsp;Pengfei Hu ,&nbsp;Yanxue Yu ,&nbsp;Zheng Chen ,&nbsp;Daozhuo Jiang ,&nbsp;Wenbin Lin","doi":"10.1016/j.ijepes.2024.110293","DOIUrl":null,"url":null,"abstract":"<div><div>As more and more renewable energy generations (REGs) are connected to the power grid through grid-following converters, the lack of inertia has become a challenge to grid-frequency stability. Virtual Synchronous Generator (VSG) is a prospected solution for this issue. However, VSGs still have several unresolved issues in practical application. Especially, in a three-phase symmetrical fault scenario, the inrush current may damage the converter and the VSG would lose synchronization with the grid. To address these issues, this paper presents a novel fault ride through (FRT) strategy. First, the transient behaviours of VSGs, including transient current characteristics and power angle characteristics are analysed, which reveals that the increase of the power angle would aggravate the inrush current. Thus, an angular frequency dynamic compensation (AFDC) strategy is proposed to eliminate the instability of power angle. Then, this paper presents a current-limiting strategy combining virtual impedance (VI) and reference voltage adjustment to limit the fault current to a safe level. Finally, the time-domain simulations and experimental tests are performed to verify the effectiveness of the proposed FRT strategy.</div></div>","PeriodicalId":50326,"journal":{"name":"International Journal of Electrical Power & Energy Systems","volume":"162 ","pages":"Article 110293"},"PeriodicalIF":5.0000,"publicationDate":"2024-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"A novel fault ride through strategy for grid-connected virtual synchronous Generators: Power angle stability enhancement and current limiting\",\"authors\":\"Siqi Liu ,&nbsp;Pengfei Hu ,&nbsp;Yanxue Yu ,&nbsp;Zheng Chen ,&nbsp;Daozhuo Jiang ,&nbsp;Wenbin Lin\",\"doi\":\"10.1016/j.ijepes.2024.110293\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>As more and more renewable energy generations (REGs) are connected to the power grid through grid-following converters, the lack of inertia has become a challenge to grid-frequency stability. Virtual Synchronous Generator (VSG) is a prospected solution for this issue. However, VSGs still have several unresolved issues in practical application. Especially, in a three-phase symmetrical fault scenario, the inrush current may damage the converter and the VSG would lose synchronization with the grid. To address these issues, this paper presents a novel fault ride through (FRT) strategy. First, the transient behaviours of VSGs, including transient current characteristics and power angle characteristics are analysed, which reveals that the increase of the power angle would aggravate the inrush current. Thus, an angular frequency dynamic compensation (AFDC) strategy is proposed to eliminate the instability of power angle. Then, this paper presents a current-limiting strategy combining virtual impedance (VI) and reference voltage adjustment to limit the fault current to a safe level. Finally, the time-domain simulations and experimental tests are performed to verify the effectiveness of the proposed FRT strategy.</div></div>\",\"PeriodicalId\":50326,\"journal\":{\"name\":\"International Journal of Electrical Power & Energy Systems\",\"volume\":\"162 \",\"pages\":\"Article 110293\"},\"PeriodicalIF\":5.0000,\"publicationDate\":\"2024-10-14\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"International Journal of Electrical Power & Energy Systems\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0142061524005155\",\"RegionNum\":2,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"ENGINEERING, ELECTRICAL & ELECTRONIC\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"International Journal of Electrical Power & Energy Systems","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0142061524005155","RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, ELECTRICAL & ELECTRONIC","Score":null,"Total":0}
引用次数: 0

摘要

随着越来越多的可再生能源发电(REG)通过电网跟随变流器接入电网,惯性的缺乏已成为电网频率稳定性的一个挑战。虚拟同步发电机(VSG)有望解决这一问题。然而,虚拟同步发电机在实际应用中仍有一些问题尚未解决。特别是在三相对称故障情况下,冲击电流可能会损坏变流器,VSG 也会失去与电网的同步性。为解决这些问题,本文提出了一种新型故障穿越(FRT)策略。首先,分析了 VSG 的瞬态行为,包括瞬态电流特性和功率角特性。因此,本文提出了一种角频率动态补偿(AFDC)策略,以消除功率角的不稳定性。然后,本文提出了一种结合虚拟阻抗(VI)和参考电压调整的限流策略,以将故障电流限制在安全水平。最后,本文进行了时域仿真和实验测试,以验证所提故障穿越策略的有效性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
查看原文
分享 分享
微信好友 朋友圈 QQ好友 复制链接
本刊更多论文
A novel fault ride through strategy for grid-connected virtual synchronous Generators: Power angle stability enhancement and current limiting
As more and more renewable energy generations (REGs) are connected to the power grid through grid-following converters, the lack of inertia has become a challenge to grid-frequency stability. Virtual Synchronous Generator (VSG) is a prospected solution for this issue. However, VSGs still have several unresolved issues in practical application. Especially, in a three-phase symmetrical fault scenario, the inrush current may damage the converter and the VSG would lose synchronization with the grid. To address these issues, this paper presents a novel fault ride through (FRT) strategy. First, the transient behaviours of VSGs, including transient current characteristics and power angle characteristics are analysed, which reveals that the increase of the power angle would aggravate the inrush current. Thus, an angular frequency dynamic compensation (AFDC) strategy is proposed to eliminate the instability of power angle. Then, this paper presents a current-limiting strategy combining virtual impedance (VI) and reference voltage adjustment to limit the fault current to a safe level. Finally, the time-domain simulations and experimental tests are performed to verify the effectiveness of the proposed FRT strategy.
求助全文
通过发布文献求助,成功后即可免费获取论文全文。 去求助
来源期刊
International Journal of Electrical Power & Energy Systems
International Journal of Electrical Power & Energy Systems 工程技术-工程:电子与电气
CiteScore
12.10
自引率
17.30%
发文量
1022
审稿时长
51 days
期刊介绍: The journal covers theoretical developments in electrical power and energy systems and their applications. The coverage embraces: generation and network planning; reliability; long and short term operation; expert systems; neural networks; object oriented systems; system control centres; database and information systems; stock and parameter estimation; system security and adequacy; network theory, modelling and computation; small and large system dynamics; dynamic model identification; on-line control including load and switching control; protection; distribution systems; energy economics; impact of non-conventional systems; and man-machine interfaces. As well as original research papers, the journal publishes short contributions, book reviews and conference reports. All papers are peer-reviewed by at least two referees.
期刊最新文献
Microgrid energy management strategy considering source-load forecast error A dimension-enhanced residual multi-scale attention framework for identifying anomalous waveforms of fault recorders Grid structure optimization using slow coherency theory and holomorphic embedding method Two-stage multi-objective optimal dispatch of hybrid power generation system for ramp stress mitigation A fast, simple and local protection scheme for fault detection and classification during power swings based on differential current component
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
已复制链接
已复制链接
快去分享给好友吧!
我知道了
×
扫码分享
扫码分享
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1