One of the principal applications of fuzzy logic is in control
system design. Fuzzy logic controllers (FLC) can be used to control
systems where the use of conventional control Techniques may be
Problematic .in this paper Fuzzy logic controller is
fabricated on
modern Field Programmable Gate Array (FPGA)Card to track the
sun to increase the energy generation efficiency of solar cells. Sun
Tracking Controller is tested using model designed by
Matlab/Simulink program. Finally we have compared with a
conventional perturbation and observation controller. Simulation
and experimental results show that performance of the fuzzy
controller with FPGA is better than the perturbation and observation
controller.
In this paper, a problem of ride comfort enhancement in a moving
vehicle was introduced and controlled by damping force to deduce
vibration caused by road profile. Sliding mode control was used to
give the damping force in two degree of freedom su
spension
system. A mechanic model of suspension system was given,
dampers and springs were used for passive damping to reduce
chattering and sliding mode control for semi-active control with
proposed method by using supervised fuzzy logic control for
chattering decreasing was designed.
A simulation with the given initial conditions was designed using
Matlab/Simulink. By computing of root mean square error we got
that the proposed method gave the best responses with the smallest
chattering compared with traditional mechanical damping and
sliding mode control. All results plotted using Matlab/Simulink.
