Nicholas A. Hawkins, N. Jewell, Moath H. A. Alqatamin, Bhagyashri Bhagwat, M. McIntyre
{"title":"A Nonlinear Fault Detection Scheme for PV Applications","authors":"Nicholas A. Hawkins, N. Jewell, Moath H. A. Alqatamin, Bhagyashri Bhagwat, M. McIntyre","doi":"10.23919/ACC45564.2020.9147204","DOIUrl":null,"url":null,"abstract":"While major faults in grid-connected PV systems are easily detectable using currently available methods, there are some instances where fault conditions can escape normal detection means. This paper proposes a nonlinear observer to detect these smaller faults using a model-based approach. This observer is validated through a Lyapunov stability analysis and verified by simulation results. The proposed observer is simple to calculate and can be utilized by a system expert to detect the presence of a fault condition.","PeriodicalId":288450,"journal":{"name":"2020 American Control Conference (ACC)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2020-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"3","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2020 American Control Conference (ACC)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.23919/ACC45564.2020.9147204","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 3
Abstract
While major faults in grid-connected PV systems are easily detectable using currently available methods, there are some instances where fault conditions can escape normal detection means. This paper proposes a nonlinear observer to detect these smaller faults using a model-based approach. This observer is validated through a Lyapunov stability analysis and verified by simulation results. The proposed observer is simple to calculate and can be utilized by a system expert to detect the presence of a fault condition.