{"title":"Optimization of the division operation for real-time control systems","authors":"A. Anuchin, V. Kozachenko, V. Kulmanov, D. Shpak","doi":"10.1109/SIBCON.2015.7146982","DOIUrl":null,"url":null,"abstract":"This paper consider the utilization of the division operation in real-time motion control microcontroller systems. It is shown that the most typical case is calculation of the inverse DC-link voltage for the correction of the inverter control signals due to DC-link voltage deviations. The benchmark of the division operation shows that it takes approximately 30 or more CPU cycles to perform division on fixed- or floating-point microcontrollers. Also programmer should use right math libraries to achieve good results. At last it is suggested to use Newton-Raphson equation for inverse DC-link voltage calculation. The accuracy of this method and its benchmark are given.","PeriodicalId":395729,"journal":{"name":"2015 International Siberian Conference on Control and Communications (SIBCON)","volume":"38 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2015-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"3","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2015 International Siberian Conference on Control and Communications (SIBCON)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/SIBCON.2015.7146982","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
This paper consider the utilization of the division operation in real-time motion control microcontroller systems. It is shown that the most typical case is calculation of the inverse DC-link voltage for the correction of the inverter control signals due to DC-link voltage deviations. The benchmark of the division operation shows that it takes approximately 30 or more CPU cycles to perform division on fixed- or floating-point microcontrollers. Also programmer should use right math libraries to achieve good results. At last it is suggested to use Newton-Raphson equation for inverse DC-link voltage calculation. The accuracy of this method and its benchmark are given.
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