出版社：Faculty of Electrical Engineering, University Teknologi Malaysia
摘要：In this paper, we present modelling and analysis of permanent magnet excited brushed dc motors which are meant for use as an electrically actuated thruster in underwater remotely operated vehicles (ROVs). Using the general solutions to the Laplacian/quasi-Poissonian magnetic field equations in the motor airgap and then applying with appropriate boundary conditions, normal and tangential components of flux density in the airgap can be analytically predicted. With distributed windings employed in the armature slots, flux linkage, induced voltage and motor performance can be calculated. The proposed analytical model can also be used to parameterize the brushed dc motor for optimal performance such as minimum torque ripple. The proposed model shows very good agreement with the results obtained from 2-dimensional (2d) finite element method (FEM). Furthermore, the analytical model compares the calculated results between the 12-slot armature dc motor and 10-slot armature dc motor.
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