Optimization of low-power brushless direct current motors

Optimal design of an electrical machine is associated with an investigation of the operation conditions of the machine, of the environment and of the driving system of the equipment. The interest for person transporting two-wheel vehicles driven by brushless direct current motors has increased lately; consequently, new researches regarding design and optimal construction of these motors are very present. There has been carried out an optimal design for a low power brushless direct current motor; as a result, there have been obtained an important decrease of the fabrication cost with 31.5%, a lower decrease of the total cost with 17.7%, and an insignificant increase of the exploitation cost with 3.68%. The optimized machine accomplishes the required gauge dimensions, its weight is lower with 23.3%, the consumption of active materials is lower, but its efficiency is lower with 2.1% in comparison with the reference machine.