An Overcurrent Protection Control Strategy of Three-Phase Inverter for Stand-alone Distributed Generation Systems

Guanjun Li, Saijin Huang, Haojie Yu, Xiangyu Wang
{"title":"An Overcurrent Protection Control Strategy of Three-Phase Inverter for Stand-alone Distributed Generation Systems","authors":"Guanjun Li, Saijin Huang, Haojie Yu, Xiangyu Wang","doi":"10.1109/ICCSI55536.2022.9970566","DOIUrl":null,"url":null,"abstract":"This paper investigates the output voltage tracking problem of three-phase inverters for the stand-alone distributed generation systems (DGSs). Overcurrent protection is also taken into consideration. Conventionally, cascade control scheme is utilized to restrict the currents by reference current signals. However, it is hard to realize rapid dynamic response due to the limited bandwidth of the inner current control loops. To solve the above problems, this paper designs a novel current-constraint controller under a noncascade structure. The proposed single-loop control scheme not only ensures the currents within specified ranges but also retains good dynamic performances. Moreover, the proposed controller has a simple structure which overcomes drawbacks of the cascade controller and reduces cost of hardware. Rigorous stability analysis is given under the proposed control scheme. Simulation results are also illustrated to validate the feasibility and effectiveness of the presented controller.","PeriodicalId":421514,"journal":{"name":"2022 International Conference on Cyber-Physical Social Intelligence (ICCSI)","volume":"46 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2022-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2022 International Conference on Cyber-Physical Social Intelligence (ICCSI)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ICCSI55536.2022.9970566","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0

Abstract

This paper investigates the output voltage tracking problem of three-phase inverters for the stand-alone distributed generation systems (DGSs). Overcurrent protection is also taken into consideration. Conventionally, cascade control scheme is utilized to restrict the currents by reference current signals. However, it is hard to realize rapid dynamic response due to the limited bandwidth of the inner current control loops. To solve the above problems, this paper designs a novel current-constraint controller under a noncascade structure. The proposed single-loop control scheme not only ensures the currents within specified ranges but also retains good dynamic performances. Moreover, the proposed controller has a simple structure which overcomes drawbacks of the cascade controller and reduces cost of hardware. Rigorous stability analysis is given under the proposed control scheme. Simulation results are also illustrated to validate the feasibility and effectiveness of the presented controller.
单机分布式发电系统三相逆变器过流保护控制策略
本文研究了单机分布式发电系统三相逆变器的输出电压跟踪问题。过流保护也被考虑在内。传统的串级控制方法是通过参考电流信号来限制电流。然而,由于电流控制内环的带宽有限,难以实现快速动态响应。为了解决上述问题,本文设计了一种非串级结构下的电流约束控制器。提出的单回路控制方案既能保证电流在规定范围内,又能保持良好的动态性能。此外,该控制器结构简单,克服了级联控制器的缺点,降低了硬件成本。对所提出的控制方案进行了严格的稳定性分析。仿真结果验证了所提控制器的可行性和有效性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 求助全文
来源期刊
自引率
0.00%
发文量
0
×
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
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
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 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:604180095
Book学术官方微信