Influence of the Rotor Geometry on Efficiency and Torque Ripple of Switched Reluctance Motor Controlled by Optimized Torque Sharing Functions

Torque sharing function (TSF)-based switched reluctance motor (SRM) control is an effective approach to minimize torque ripple and maximize efficiency. This study investigated the influence of the rotor geometry to overcome the inherent torque and current tracking error of used TSFs. Parameters of t...

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Main Authors: Želmíra Ferková, Peter Bober
Format: Article
Language:English
Published: MDPI AG 2023-06-01
Series:Machines
Subjects:
Online Access:https://www.mdpi.com/2075-1702/11/6/613
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author Želmíra Ferková
Peter Bober
author_facet Želmíra Ferková
Peter Bober
author_sort Želmíra Ferková
collection DOAJ
description Torque sharing function (TSF)-based switched reluctance motor (SRM) control is an effective approach to minimize torque ripple and maximize efficiency. This study investigated the influence of the rotor geometry to overcome the inherent torque and current tracking error of used TSFs. Parameters of the TSF were optimized according to several objectives. A finite element method simulation model of the motor was built and verified to evaluate the objective functions. The optimization result is a set of functions that calculate optimal values of the start angle and overlap angle of the sinusoidal TSF for every operating point of the motor. Different objectives, including efficiency and a torque ripple, lead to different functions for calculating start and overlap angles. The research showed that if efficiency is the most important objective, it is possible to determine a suitable rotor pole geometry. For other criteria, the choice of rotor geometry is not so clear-cut and requires consideration of the SRM operating modes.
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spelling doaj.art-7bd53c346fa64fc3b1ae03baa351adb52023-11-18T11:20:36ZengMDPI AGMachines2075-17022023-06-0111661310.3390/machines11060613Influence of the Rotor Geometry on Efficiency and Torque Ripple of Switched Reluctance Motor Controlled by Optimized Torque Sharing FunctionsŽelmíra Ferková0Peter Bober1Faculty of Electrical Engineering and Informatics, Technical University of Košice, 04200 Košice, SlovakiaFaculty of Electrical Engineering and Informatics, Technical University of Košice, 04200 Košice, SlovakiaTorque sharing function (TSF)-based switched reluctance motor (SRM) control is an effective approach to minimize torque ripple and maximize efficiency. This study investigated the influence of the rotor geometry to overcome the inherent torque and current tracking error of used TSFs. Parameters of the TSF were optimized according to several objectives. A finite element method simulation model of the motor was built and verified to evaluate the objective functions. The optimization result is a set of functions that calculate optimal values of the start angle and overlap angle of the sinusoidal TSF for every operating point of the motor. Different objectives, including efficiency and a torque ripple, lead to different functions for calculating start and overlap angles. The research showed that if efficiency is the most important objective, it is possible to determine a suitable rotor pole geometry. For other criteria, the choice of rotor geometry is not so clear-cut and requires consideration of the SRM operating modes.https://www.mdpi.com/2075-1702/11/6/613efficiencyfinite element methodoptimizationswitched reluctance motortorque rippletorque sharing function
spellingShingle Želmíra Ferková
Peter Bober
Influence of the Rotor Geometry on Efficiency and Torque Ripple of Switched Reluctance Motor Controlled by Optimized Torque Sharing Functions
Machines
efficiency
finite element method
optimization
switched reluctance motor
torque ripple
torque sharing function
title Influence of the Rotor Geometry on Efficiency and Torque Ripple of Switched Reluctance Motor Controlled by Optimized Torque Sharing Functions
title_full Influence of the Rotor Geometry on Efficiency and Torque Ripple of Switched Reluctance Motor Controlled by Optimized Torque Sharing Functions
title_fullStr Influence of the Rotor Geometry on Efficiency and Torque Ripple of Switched Reluctance Motor Controlled by Optimized Torque Sharing Functions
title_full_unstemmed Influence of the Rotor Geometry on Efficiency and Torque Ripple of Switched Reluctance Motor Controlled by Optimized Torque Sharing Functions
title_short Influence of the Rotor Geometry on Efficiency and Torque Ripple of Switched Reluctance Motor Controlled by Optimized Torque Sharing Functions
title_sort influence of the rotor geometry on efficiency and torque ripple of switched reluctance motor controlled by optimized torque sharing functions
topic efficiency
finite element method
optimization
switched reluctance motor
torque ripple
torque sharing function
url https://www.mdpi.com/2075-1702/11/6/613
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AT peterbober influenceoftherotorgeometryonefficiencyandtorquerippleofswitchedreluctancemotorcontrolledbyoptimizedtorquesharingfunctions