A. Damiano, G. Gatto, I. Marongiu, Alessandro Pisano
{"title":"Synthesis and digital implementation of a reduced order rotor flux observer for IM drive","authors":"A. Damiano, G. Gatto, I. Marongiu, Alessandro Pisano","doi":"10.1109/ISIE.1999.798703","DOIUrl":null,"url":null,"abstract":"This paper deals with the rotor flux detection in induction motor (IM) drives by means of reduced-order observers. The basic structure discussed by Verghese et al. is slightly modified, and a novel observer class is proposed. A detailed stability analysis by the Lyapunov approach is conducted, and the effect of rotor resistance variation is investigated. The discrete time implementation of the observer model is considered, and the Z-transform method is used to ensure the stability of the observer whichever is the adopted sampling period. Experimental investigations are conducted on a direct field oriented (DFO) IM drive to test the online behaviour of the proposed observer class.","PeriodicalId":227402,"journal":{"name":"ISIE '99. Proceedings of the IEEE International Symposium on Industrial Electronics (Cat. No.99TH8465)","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"1999-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"4","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"ISIE '99. Proceedings of the IEEE International Symposium on Industrial Electronics (Cat. No.99TH8465)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ISIE.1999.798703","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 4
Abstract
This paper deals with the rotor flux detection in induction motor (IM) drives by means of reduced-order observers. The basic structure discussed by Verghese et al. is slightly modified, and a novel observer class is proposed. A detailed stability analysis by the Lyapunov approach is conducted, and the effect of rotor resistance variation is investigated. The discrete time implementation of the observer model is considered, and the Z-transform method is used to ensure the stability of the observer whichever is the adopted sampling period. Experimental investigations are conducted on a direct field oriented (DFO) IM drive to test the online behaviour of the proposed observer class.