Optimal brushless DC motor design using genetic algorithms

This paper presents a method for the optimal design of a slotless permanent magnet brushless DC (BLDC) motor with surface mounted magnets using a genetic algorithm. Characteristics of the motor are expressed as functions of motor geometries. The objective function is a combination of losses, volume and cost to be minimized simultaneously. Electrical and mechanical requirements (i.e. voltage, torque and speed) and other limitations (e.g. upper and lower limits of the motor geometries) are cast into constraints of the optimization problem. One sample case is used to illustrate the design and optimization technique.

[1]  N. Bianchi,et al.  Brushless DC motor design: an optimisation procedure based on genetic algorithms , 1997 .

[2]  Osama A. Mohammed,et al.  Utilizing genetic algorithms for the optimal design of electromagnetic devices , 1994 .

[3]  J. Saari.  Thermal analysis of high-speed induction machines , 1998 .

[4]  C. C. Hwang,et al.  Design and analysis of a high power density and high efficiency permanent magnet DC motor , 2000 .

[5]  Y. Perriard,et al.  Design optimization of a BLDC motor: a comparative analysis , 2007, 2007 IEEE International Electric Machines & Drives Conference.

[6]  Gregor Papa,et al.  A comparative study of stochastic optimization methods in electric motor design , 2007, Applied Intelligence.

[7]  A. Moses,et al.  FEM modeling of rotor losses in PM motors , 2006 .

[8]  Y. Perriard,et al.  Simplified Design Methodology for a Slotless Brushless DC Motor , 2006, IEEE Transactions on Magnetics.

[9]  David E. Goldberg,et al.  Genetic Algorithms in Search Optimization and Machine Learning , 1988 .

[10]  P. Pillay,et al.  An improved formula for lamination core loss calculations in machines operating with high frequency and high flux density excitation , 2002, Conference Record of the 2002 IEEE Industry Applications Conference. 37th IAS Annual Meeting (Cat. No.02CH37344).

[11]  Z. Zhu,et al.  Instantaneous magnetic field distribution in brushless permanent magnet DC motors. II. Armature-reaction field , 1993 .

[12]  Z. Zhu,et al.  Instantaneous magnetic field distribution in brushless permanent magnet DC motors. I. Open-circuit field , 1993 .

[13]  K. Rajagopal,et al.  Genetic algorithm based design optimization of a permanent magnet brushless dc motor , 2005 .

[14]  P. Brochet,et al.  Optimization techniques derived from experimental design method and their application to the design of a brushless direct current motor , 2001 .

[15]  Frédéric Messine,et al.  Optimal design of electromechanical actuators: a new method based on global optimization , 1998 .

[16]  Waseem A. Roshen,et al.  Magnetic losses for non-sinusoidal waveforms found in AC motors , 2006, IEEE Transactions on Power Electronics.

[17]  Yee-Pien Yang, Tze-Chi Chiao.  Multiobjective Optimal Design of a High Speed Brushless DC Motor , 2000 .

[18]  Seok-Myeong Jang,et al.  Design and Analysis of a High-Speed Brushless DC Motor for Centrifugal Compressor , 2007, IEEE Transactions on Magnetics.