الفهرس 
MODELING OF A DC MOTOR
Previous Studies based optimizing techniques of the PID gain parametersOnly 14 pages are availabe for public view
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Abstract
he machines in the industry could be generally classified based on
axial and radial field distribution in the airgap. Axial field machines has
unique advantages compared to radial gap machines of which slim and short
axial length in addition to high power denisty. The axial machines were
considered to be the earliest machines however later they were replaced by
radial machines. Nowadays the evolution of the axial flux machines was
grown enormously due to the urgent needs for a slim compact high power
density drive motors that are crucial in many applications like electric cars,
robotics, electric bicycles, traction, etc., the axial field machines is an
attractive solution for this issue. There are many construction topologies for
these machines that are under constant development, the machine could be
DC, synchronous multiphase, brushed, brushless, with iron core, coreless
with printed stator or printed disc rotor. The presented machine is an axial
flux permanent magnet brushed commutated printed circuit rotor DC motor
(PCBDCM), it is considered from the family of axial machines. The first
objective of the thesis is to study the dynamic performance of this type of
motor, this was done by constructing a block diagram of this motor system
as well as performing state space modeling, where the simulation program
was MATLAB/SIMULINK. There are two presented printed DC motors
with different parameters under study the first one is 0.534 KW and the
second is 1KW. A comparative study was performed on the two PCB motors
and a 3.08KW conventional DC servo motor firstly in open loop then in
closed loop using a proportional integral derivative (PID) as a controller.
The results of the comparative study show the superior dynami
performance of the PCB motor over the conventional one. The second
objective was to test a new controller algorithm which is fuzzy based PID
controller (FLCP) on this type of motor in order to greatly improve its
dynamic performance for industrial closed loop applications; consequently
the PCB motors with this controller could be suggested as reliable candidate
for applications that require accurate speed regulation and precise
positioning.