Journal ArticleDOI
Thermal management of electric machines
Yinye Yang,Berker Bilgin,Michael Kasprzak,Shamsuddeen Nalakath,Hossam Sadek,Matthias Preindl,James S. Cotton,Nigel Schofield,Ali Emadi +8 more
TLDR
In this article, the authors present various important aspects of thermal management in electric machines with the main focus on transportation applications and discuss design considerations, challenges, and methods for enhanced thermal management.Abstract:
Electric machines have broadly been used in many industries including the transportation industry. With the evolving trend of electrification in transportation, electric machines with higher power density and higher efficiency are demanded and, thus, more stringent thermal management requirements are needed for electrified vehicle applications. This study comprehensively presents various important aspects of thermal management in electric machines with the main focus on transportation applications. Design considerations, challenges, and methods for enhanced thermal management are discussed. Fundamental thermal properties of common materials are presented and sources of losses in various parts of machines are explained. Furthermore, typical cooling techniques and thermal analysis approaches for electric machines are reviewed in detail. This study will serve as a reference guideline for machine designers, who are interested in thermal management, and for thermal researchers working on electric machines.read more
Citations
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Journal ArticleDOI
Design and Comparison of Interior Permanent Magnet Motor Topologies for Traction Applications
Yinye Yang,Sandra M. Castano,Rong Yang,Michael Kasprzak,Berker Bilgin,Anand Sathyan,Hossein Dadkhah,Ali Emadi +7 more
TL;DR: In this paper, three different IPM rotor design configurations, which have been used in electrified powertrains from Toyota, Nissan, and General Motors, are comparatively investigated and compared for motor performance, torque segregation, demagnetization, mechanical stress, and radial forces.
Temperature measurement
TL;DR: In this paper, the authors present a brief review of the six types with which the engineer is likely to come into contact: thermocouples, resistance temperature devices (RTD's and thermistors), infrared radiators, bimetallic devices, liquid expansion devices, and change-of-state devices.
Journal ArticleDOI
Improved Thermal Management and Analysis for Stator End-Windings of Electrical Machines
TL;DR: Modeling and experimental results show that a 25% hot-spot temperature reduction on a particular application can be achieved on the basis of the proposed end-winding cooling method.
Journal ArticleDOI
Modeling and Analysis of Electric Motors: State-of-the-Art Review
Berker Bilgin,Jianbin Liang,Mladen V. Terzic,Jianning Dong,Romina Rodriguez,Elizabeth Trickett,Ali Emadi +6 more
TL;DR: A comprehensive state-of-the-art review of the modeling and analysis methods for the multidisciplinary design of electric motors for various applications including vehicular power and propulsion systems and electrified powertrains.
Journal ArticleDOI
Thermal Management of High-Power Density Electric Motors for Electrification of Aviation and Beyond
TL;DR: In this paper, the most recent progress in thermal management of electric motors with particular focus on electric motors of significance to aviation propulsion is discussed, and the authors focus on the electric motors that are a key enabler for future electrification of aviation.
References
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Journal ArticleDOI
Electrical Machines and Drives for Electric, Hybrid, and Fuel Cell Vehicles
Zi-Qiang Zhu,David Howe +1 more
TL;DR: In this article, the relative merits of induction, switched reluctance, and permanent-magnet (PM) brushless machines and drives for application in electric, hybrid, and fuel cell vehicles are reviewed.
Electrical Machines and Drives for Electric, Hybrid, and Fuel Cell Vehicles Induction and switched-reluctance machines can provide the needed characteristics, but permanent magnet brushless machines offer a higher efficiency and torque density.
Zi-Qiang Zhu,David Howe +1 more
TL;DR: This paper reviews the relative merits of induction, switched reluctance, and permanent-magnet brushesless machines and drives for application in electric, hybrid, and fuel cell vehicles, with particular emphasis on PM brushless machines.
Book
Electric Machinery Fundamentals
TL;DR: This article presented AC machine emphasis over DC machines, although it is suitable to study either or both with this book, and MATLAB has been incorporated throughtout, both in examples and problems.
Journal ArticleDOI
Lumped parameter thermal model for electrical machines of TEFC design
TL;DR: In this paper, a lumped-parameter thermal model is described which provides both a steady-state and transient solution to the temperatures within an electrical machine of the TEFC design.
Journal ArticleDOI
Evolution and Modern Approaches for Thermal Analysis of Electrical Machines
TL;DR: The improvements and the new techniques proposed in the last decade are analyzed in depth and compared in order to highlight the qualities and defects of each.