Title :
A comparative study of different slot configurations for PM brushless machines used for vehicle traction
Author :
de Paula, G.T. ; de A Monteiro, J.R.B. ; de Almeida, T.E.P. ; de Santana, M.P. ; Pereira, W.C.A. ; Santini, I.
Author_Institution :
Sch. of Eng. of Sao Carlos, Dept. of Electr. Eng., USP, Sao Carlos, Brazil
Abstract :
This work describes the design and optimization process of a direct-drive permanent magnet synchronous machine that is suitable for electric motorcycles. The machine is designed to develop approximately the same power than a conventional 250cc motorcycle internal combustion engine. The main goal of this work is to design an outer-rotor machine that is coupled directly to the wheel (direct-drive or in-wheel motor), so it is necessary to know the dimensions and arrangements of the wheels. The direct-drive systems do not need any gearbox to drive the vehicle, so that the global efficiency is higher than conventional systems employing a gearbox. The design and performance of the machine are assessed by means of simulations using the finite element method. The finite element method is the main tool to optimize the machine´s design.
Keywords :
brushless machines; finite element analysis; internal combustion engines; motorcycles; optimisation; permanent magnet machines; synchronous machines; traction; wheels; PM brushless machine; direct-drive motor; direct-drive permanent magnet synchronous machine; electric motorcycle; finite element method; gearbox; in-wheel motor; internal combustion engine; optimization process; outer-rotor machine design; slot configuration; vehicle traction; Brushless DC motors; Coils; Computer aided software engineering; Forging; Standards; Torque; Brushless DC motor; cogging torque; electric vehicle; electromagnetic torque ripple; permanent magnet synchronous machine;
Conference_Titel :
Industrial Electronics Society, IECON 2013 - 39th Annual Conference of the IEEE
Conference_Location :
Vienna
DOI :
10.1109/IECON.2013.6699524
