Title :
Multiobjective optimal design of interior permanent magnet synchronous motors considering improved core loss formula
Author :
Sim, Dong-Joon ; Cho, Dong-Hyeok ; Jung, Hyun-Kyo ; Hahn, Song-Yop
Author_Institution :
Steel Process Div., RIST, Pohang, South Korea
Abstract :
This paper describes the optimal design of interior permanent magnet synchronous motors for which two objective functions regarding motor efficiency and weight are used. Multiobjective optimization technique is applied to finding the optimal solution in this case. An optimal design method that determines both the noninferior set and the best compromise solution employing a modified genetic algorithm is proposed. In order to predict the motor performance more accurately, a core loss formula is derived considering the flux variation due to the armature reaction MMF as well as that due to the magnet
Keywords :
genetic algorithms; machine theory; magnetic cores; magnetic flux; permanent magnet motors; synchronous motors; armature reaction MMF; best compromise solution; core loss formula; flux variation; interior permanent magnet synchronous motors; modified genetic algorithm; motor efficiency; motor performance prediction; motor weight; multiobjective optimal design; multiobjective optimization technique; noninferior set; Core loss; Eddy currents; Genetic algorithms; Hysteresis motors; Magnetic flux; Permanent magnet motors; Stator cores; Steel; Synchronous motors; Teeth;
Conference_Titel :
Electric Machines and Drives Conference Record, 1997. IEEE International
Conference_Location :
Milwaukee, WI
Print_ISBN :
0-7803-3946-0
DOI :
10.1109/IEMDC.1997.604059
