Thermal modeling of a short-duty motor

In some applications electric motors operate only for a very short period of time. Thermal designs of such motors are extremely important to optimize system weight and size. This paper discusses transient thermal performance of a short-duty rated motor. An analytical study shows that the quality of impregnation plays a significant role in transient performance. Thermal protection with temperature sensors will not be reliable due to delays in temperature measurement, and a predictive protection is essential. The analysis is confirmed by 2-dimentional finite element analysis and prototype motor testing.

[1]  P. Sangha,et al.  Thermal Modeling of Brushless DC Motor and Brake Solenoid in Electro-Mechanical Actuators for the More Electric Aircraft Engine , 2007, 2007 IEEE International Symposium on Industrial Electronics.

[2]  Cristian De Angelo,et al.  Online Sensorless Induction Motor Temperature Monitoring , 2010, IEEE Transactions on Energy Conversion.

[3]  A. Boglietti,et al.  TEFC induction motors thermal models: a parameter sensitivity analysis , 2004, IEEE Transactions on Industry Applications.

[4]  David G. Dorrell.  Combined Thermal and Electromagnetic Analysis of Permanent-Magnet and Induction Machines to Aid Calculation , 2008, IEEE Transactions on Industrial Electronics.

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

[6]  B. Laporte,et al.  A combined electromagnetic and thermal analysis of induction motors , 2005, IEEE Transactions on Magnetics.

[7]  Andrea Cavagnino,et al.  Solving the more difficult aspects of electric motor thermal analysis in small and medium size industrial induction motors , 2005 .

[8]  David G. Dorrell,et al.  Linked electromagnetic and thermal modelling of a permanent magnet motor , 1988 .

[9]  Andrea Cavagnino,et al.  Evolution and Modern Approaches for Thermal Analysis of Electrical Machines , 2009, IEEE Transactions on Industrial Electronics.

[10]  A. Boglietti,et al.  Analysis of the Endwinding Cooling Effects in TEFC Induction Motors , 2006, IEEE Transactions on Industry Applications.

[11]  A. Boglietti,et al.  Determination of Critical Parameters in Electrical Machine Thermal Models , 2007 .

[12]  Jinxin Fan,et al.  Thermal Analysis of Permanent Magnet Motor for the Electric Vehicle Application Considering Driving Duty Cycle , 2010, IEEE Transactions on Magnetics.

[13]  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).

[14]  T. G. Habetler,et al.  An Evaluation of Model-Based Stator Resistance Estimation for Induction Motor Stator Winding Temperature Monitoring , 2002, IEEE Power Engineering Review.

[15]  Andrea Cavagnino,et al.  A simplified thermal model for variable speed self cooled industrial induction motor , 2002 .

[16]  Kankanhalli N. Seetharamu,et al.  Transient thermal analysis of induction motors , 1998 .

[17]  Dallas D. Hill,et al.  Development and Validation of a Thermal Model for Electric Induction Motors , 2010, IEEE Transactions on Industrial Electronics.