MODELLING AND SIMULATION OF A PERMANENT MAGNET DC LINEAR MOTOR

This report presents the project of modeling and simulation of a permanent magnet
direct -current (DC) linear motor. The permanent magnet DC linear motor produces
a linear motion. It produces motion in a straight line directly, without the use of a
crank or any other mechanism for converting rotary motion to linear motion. The
objectives of this project are to study on a permanent magnet DC linear motor,
compare the efficiency between DC linear motor and DC rotary motor, design and
simulate a model of permanent magnet DC linear motor with various loads and
excitation conditions. In this project, after doing some study, a DC linear motorwas
compared with a DC rotary motor in terms of efficiency. A model of squarearmature
DC linear motor also was designed using MATLAB/Simulink and it was
simulated with various loads and excitation conditions to observe the dynamic
performances. The results obtained show that the DC rotary motor has higher
efficiency compare to the DC linear motor. The dynamic performances of the
permanent magnet DC linear motor such as velocity, output force, output power and
efficiency are vary toeach situations, where the higher armature excitation and lower
load mass, the better the performances. After completing this project, the objectives
were achieved and identified that a permanent magnet DC linear motor has great
dynamic performances.