Dependancy of Three Phase Induction Motor Derating Aspects on Complex Voltage Unbalance Factor: A Calorimetric and Finite Element Simulation Study

It is well known that three-phase induction motors have to be derated in the presence of supply voltage unbalance (negative sequence) exceeding a stipulated limit of 1% based on several widely used standards. Generally, voltage unbalance limits are decided based on the magnitude of negati...

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Autores principales:	Pathum Sudasinghe, Upuli Jayatunga, Philip Commins, Jeff Moscrop, Sarath Perera
Formato:	article
Lenguaje:	EN
Publicado:	IEEE 2021
Materias:	Complex voltage unbalance factor double chamber calorimeter finite element simulations temperature rise three-phase induction motor derating torque ripple Electrical engineering. Electronics. Nuclear engineering TK1-9971
Acceso en línea:	https://doaj.org/article/1603a730fe0a4e3a9c2777ee81b92d9b
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spelling	oai:doaj.org-article:1603a730fe0a4e3a9c2777ee81b92d9b2021-11-18T00:07:50ZDependancy of Three Phase Induction Motor Derating Aspects on Complex Voltage Unbalance Factor: A Calorimetric and Finite Element Simulation Study2169-353610.1109/ACCESS.2021.3117375https://doaj.org/article/1603a730fe0a4e3a9c2777ee81b92d9b2021-01-01T00:00:00Zhttps://ieeexplore.ieee.org/document/9566304/https://doaj.org/toc/2169-3536It is well known that three-phase induction motors have to be derated in the presence of supply voltage unbalance (negative sequence) exceeding a stipulated limit of 1% based on several widely used standards. Generally, voltage unbalance limits are decided based on the magnitude of negative sequence voltage unbalance factor which is quantified as the ratio of negative sequence voltage to positive sequence voltage. However, a specified voltage unbalance magnitude can arise as a result of numerous possibilities of the three phase supply voltages. Therefore, it is hypothesised that the current derating curve, which defines a derating factor that is dependent on the magnitude of the voltage unbalance, is not optimal and may not be economical and/or safe for some voltage unbalance conditions. To examine the validity of this hypothesis, modelling and experimental validation need to be carried out considering motor losses and temperature rise which are the main factors that help determine the derating factor of an induction motor. Realising these requirements, the emphasis of this study is to examine the dependency of losses, temperature rise and torque oscillations of a three-phase induction motor on the complex nature of voltage unbalance through calorimetric and finite element simulation-based studies. The outcomes are expected to assist in the development of suitable derating factors.Pathum SudasingheUpuli JayatungaPhilip ComminsJeff MoscropSarath PereraIEEEarticleComplex voltage unbalance factordouble chamber calorimeterfinite element simulationstemperature risethree-phase induction motor deratingtorque rippleElectrical engineering. Electronics. Nuclear engineeringTK1-9971ENIEEE Access, Vol 9, Pp 147063-147071 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Complex voltage unbalance factor double chamber calorimeter finite element simulations temperature rise three-phase induction motor derating torque ripple Electrical engineering. Electronics. Nuclear engineering TK1-9971
spellingShingle	Complex voltage unbalance factor double chamber calorimeter finite element simulations temperature rise three-phase induction motor derating torque ripple Electrical engineering. Electronics. Nuclear engineering TK1-9971 Pathum Sudasinghe Upuli Jayatunga Philip Commins Jeff Moscrop Sarath Perera Dependancy of Three Phase Induction Motor Derating Aspects on Complex Voltage Unbalance Factor: A Calorimetric and Finite Element Simulation Study
description	It is well known that three-phase induction motors have to be derated in the presence of supply voltage unbalance (negative sequence) exceeding a stipulated limit of 1% based on several widely used standards. Generally, voltage unbalance limits are decided based on the magnitude of negative sequence voltage unbalance factor which is quantified as the ratio of negative sequence voltage to positive sequence voltage. However, a specified voltage unbalance magnitude can arise as a result of numerous possibilities of the three phase supply voltages. Therefore, it is hypothesised that the current derating curve, which defines a derating factor that is dependent on the magnitude of the voltage unbalance, is not optimal and may not be economical and/or safe for some voltage unbalance conditions. To examine the validity of this hypothesis, modelling and experimental validation need to be carried out considering motor losses and temperature rise which are the main factors that help determine the derating factor of an induction motor. Realising these requirements, the emphasis of this study is to examine the dependency of losses, temperature rise and torque oscillations of a three-phase induction motor on the complex nature of voltage unbalance through calorimetric and finite element simulation-based studies. The outcomes are expected to assist in the development of suitable derating factors.
format	article
author	Pathum Sudasinghe Upuli Jayatunga Philip Commins Jeff Moscrop Sarath Perera
author_facet	Pathum Sudasinghe Upuli Jayatunga Philip Commins Jeff Moscrop Sarath Perera
author_sort	Pathum Sudasinghe
title	Dependancy of Three Phase Induction Motor Derating Aspects on Complex Voltage Unbalance Factor: A Calorimetric and Finite Element Simulation Study
title_short	Dependancy of Three Phase Induction Motor Derating Aspects on Complex Voltage Unbalance Factor: A Calorimetric and Finite Element Simulation Study
title_full	Dependancy of Three Phase Induction Motor Derating Aspects on Complex Voltage Unbalance Factor: A Calorimetric and Finite Element Simulation Study
title_fullStr	Dependancy of Three Phase Induction Motor Derating Aspects on Complex Voltage Unbalance Factor: A Calorimetric and Finite Element Simulation Study
title_full_unstemmed	Dependancy of Three Phase Induction Motor Derating Aspects on Complex Voltage Unbalance Factor: A Calorimetric and Finite Element Simulation Study
title_sort	dependancy of three phase induction motor derating aspects on complex voltage unbalance factor: a calorimetric and finite element simulation study
publisher	IEEE
publishDate	2021
url	https://doaj.org/article/1603a730fe0a4e3a9c2777ee81b92d9b
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Dependancy of Three Phase Induction Motor Derating Aspects on Complex Voltage Unbalance Factor: A Calorimetric and Finite Element Simulation Study

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