Solving the more difficult aspects of electric motor thermal analysis in small and medium size industrial induction motors

With the ever-increasing pressure on electric motor manufacturers to develop smaller and more efficient electric motors, there is a need for more thermal analysis in parallel with the traditional electromagnetic design. Attention to the thermal design can be rewarded by major improvements in the overall performance. Technical papers published to date highlight a number of thermal design issues that are difficult to analyze. This paper reviews some of these issues and gives advice on how to deal with them when developing algorithms for inclusion in design software.

[1]  Geoffrey Ingram Taylor,et al.  Distribution of velocity and temperature between concentric rotating cylinders , 1935 .

[2]  S. T. Hsu,et al.  Engineering heat transfer , 1963 .

[3]  M. M. Liwschitz-Garik.  Some Factors Influencing the Temperature Rise of Armature Windings [includes discussion] , 1955, Transactions of the American Institute of Electrical Engineers. Part III: Power Apparatus and Systems.

[4]  Stephen Pickering,et al.  Heat transfer from the stator end-windings of a low voltage concentric-wound induction motor , 1995 .

[5]  Franz Unger.  Die Wärmeleitung in Runddrahtspulen , 1955 .

[6]  D. A. Staton.  Thermal computer aided design-advancing the revolution in compact motors , 2001, IEMDC 2001. IEEE International Electric Machines and Drives Conference (Cat. No.01EX485).

[7]  D. R. Turner,et al.  Lumped parameter thermal model for electrical machines of TEFC design , 1991 .

[8]  A. Di Gerlando,et al.  Thermal Networks of Induction Motors for Steady State and Transient Operation Analysis , 1994 .

[9]  A. Boglietti,et al.  A simplified thermal model for variable speed self cooled industrial induction motor , 2002, Conference Record of the 2002 IEEE Industry Applications Conference. 37th IAS Annual Meeting (Cat. No.02CH37344).

[10]  T. J. Roberts.  Determination of the Thermal Constants of the Heat Flow Equations of Electrical Machines , 1969 .

[11]  J. M. Coulson,et al.  Heat Transfer , 2018, A Concise Manual of Engineering Thermodynamics.

[12]  P. Lettieri,et al.  An introduction to heat transfer , 2007 .

[13]  Essam S Hamdi,et al.  Design of Small Electrical Machines , 1994 .

[14]  Toshiyuki Hayase,et al.  Numerical Calculation of Convective Heat Transfer Between Rotating Coaxial Cylinders With Periodically Embedded Cavities , 1992 .