Study of the design and tuning methods of PID
controller based on fuzzy logic and genetic algorithm

Mallick, Sangram Keshari and Khan, Mehetab Alam (2011) Study of the design and tuning methods of PID
controller based on fuzzy logic and genetic algorithm.
BTech thesis.



This project tries to explore the potential of using soft computing methodologies in controllers and their advantages over conventional methods. PID controller, being the most widely used controller in industrial applications, needs efficient methods to control the different parameters
of the plant. This thesis asserts that the conventional approach of PID tuning is not very efficient due to the presence of non-linearity in the system of the plant. The output of the conventional PID system has a quite high overshoot and settling time.
The main focus of this project is to apply two specific soft-computing techniques viz. fuzzy logic and genetic algorithm to design and tuning of PID controller to get an output with better dynamic and static performance. The application of fuzzy logic to the PID controller imparts it the ability of tuning itself automatically in an on-line process while the application of genetic algorithm to
the PID controller makes it give an optimum output by searching for the best set of solutions for the PID parameters. The project also discusses the benefits and the short-comings of both the methods. The simulation outputs are the MATLAB results obtained for a step input to a third-order plant.

Item Type:Thesis (BTech)
Uncontrolled Keywords:PID controller, Genetic algorithm, fuzzy logic
Subjects:Engineering and Technology > Instrumentation
Divisions: Engineering and Technology > Department of Electronics and Communication Engineering
ID Code:2657
Deposited By:Khan Mehetab Alam
Deposited On:17 May 2011 15:38
Last Modified:17 May 2011 15:38
Supervisor(s):Rath, G S

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