{"title":"A Current Sampling-Correction Method for Single DC-Link Current Sensor Operation of PMSM Without Motor Parameters","authors":"Yeming Zheng;Yawei Wang;Dayi Li;Chen Zhang;Ronghai Qu","doi":"10.1109/JESTPE.2025.3549973","DOIUrl":null,"url":null,"abstract":"Single current sensor operation (SCSO) in motor drives has garnered significant attention due to its cost-effectiveness and compact dimensions. The conventional SCSO sampling logic, however, results in substantial errors in the reconstructed current. In order to reduce the reconstruction errors, this article proposes a current sampling-correction method for permanent magnet synchronous motor (PMSM) using a five-segment switchable space vector pulsewidth modulation (FSS-SVPWM) combined with cross-period sampling technology. This method does not require any motor parameter. An analysis method for FSS-SVPWM voltage harmonics is presented under steady-state conditions. Additionally, the reconstruction dead zone, correction precision, and switching frequency are discussed. Finally, a 1.5 kW PMSM experimental platform was constructed to verify the performance of the proposed method.","PeriodicalId":13093,"journal":{"name":"IEEE Journal of Emerging and Selected Topics in Power Electronics","volume":"13 4","pages":"5097-5110"},"PeriodicalIF":4.9000,"publicationDate":"2025-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"IEEE Journal of Emerging and Selected Topics in Power Electronics","FirstCategoryId":"5","ListUrlMain":"https://ieeexplore.ieee.org/document/10918971/","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
Abstract
Single current sensor operation (SCSO) in motor drives has garnered significant attention due to its cost-effectiveness and compact dimensions. The conventional SCSO sampling logic, however, results in substantial errors in the reconstructed current. In order to reduce the reconstruction errors, this article proposes a current sampling-correction method for permanent magnet synchronous motor (PMSM) using a five-segment switchable space vector pulsewidth modulation (FSS-SVPWM) combined with cross-period sampling technology. This method does not require any motor parameter. An analysis method for FSS-SVPWM voltage harmonics is presented under steady-state conditions. Additionally, the reconstruction dead zone, correction precision, and switching frequency are discussed. Finally, a 1.5 kW PMSM experimental platform was constructed to verify the performance of the proposed method.
期刊介绍：
The aim of the journal is to enable the power electronics community to address the emerging and selected topics in power electronics in an agile fashion. It is a forum where multidisciplinary and discriminating technologies and applications are discussed by and for both practitioners and researchers on timely topics in power electronics from components to systems.
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