DC Motor Simulation using LTSpice

Abstract

DC motor is simulated in this paper, in which LTSpice simulator is used. DC Motor is still highly needed in industrial world, for applications that needs goods’ movement in the process line. Therefore, in this paper, it is important to do simulation before real-world electronic circuit is developed. Thereby we promote green eco-friendly environment, by reducing electronic waste caused by prototyping. The simulation of DC Motor is divided into three (3) parts. First, a simplified DC motor model is assumed, and then the effect of inductance and inertia of the DC motor are considered. Lastly, a small perturbation is noticeable in the output of the electrical DC motor, and after a careful insight into the slip-ring mechanical inside of the DC motor, the effect of it is added in the final simulation model. This gradual modelling methodology certainly helps students to correlate between DC motor modelling with the sampled real-world data, which is taken directly from the experimental laboratory.