Robust adaptive control of nonlinear system based on QFT application to 3DOF flight control system /

This research is a development of a hybrid controller design constructed by robust and adaptive controller application to three degree of freedom (3 DOF) helicopter flight control model. 3 DOF helicopter model is a lab developed benchmark model of actual helicopter with operation of nonlinearities,...

Full description

Saved in:
Bibliographic Details
Main Author: Boby, Rounakul Islam (Author)
Format: Thesis
Language:English
Published: Kuala Lumpur : Kulliyyah of Engineering, International Islamic University Malaysia, 2017
Subjects:
Online Access:http://studentrepo.iium.edu.my/handle/123456789/5190
Tags: Add Tag
No Tags, Be the first to tag this record!
LEADER 039680000a22003010004500
008 180328s2017 my a f m 000 0 eng d
040 |a UIAM  |b eng  |e rda 
041 |a eng 
043 |a a-my--- 
050 0 0 |a TJ217 
100 1 |a Boby, Rounakul Islam,  |e author 
245 1 0 |a Robust adaptive control of nonlinear system based on QFT application to 3DOF flight control system /  |c by Rounakul Islam Boby 
264 1 |a Kuala Lumpur :  |b Kulliyyah of Engineering, International Islamic University Malaysia,  |c 2017 
300 |a xvi, 112 leaves :  |b illustrations ;  |c 30cm. 
336 |2 rdacontent  |a text 
347 |2 rdaft  |a text file  |b PDF 
502 |a Thesis (MSEE)--International Islamic University Malaysia, 2017. 
504 |a Includes bibliographical references (leaves 102-105). 
520 |a This research is a development of a hybrid controller design constructed by robust and adaptive controller application to three degree of freedom (3 DOF) helicopter flight control model. 3 DOF helicopter model is a lab developed benchmark model of actual helicopter with operation of nonlinearities, time variable and strong motor coupling system. Pitch, travel & elevator are the angles of 3 DOF model and it is usually renowned for uncertainty characteristics, unmodeled dynamics, affected by disturbances, measurement noise and many more. The objectives of this research are to design and develop hybrid controller to control those uncertain characteristics of the 3 DOF model then verify the performance and make comparison with existing controller. Adaptive controller is a constant gain feedback controller that can be adapted with plant's parameter changes within certain bounds. Quantitative feedback theory is a frequency domain design method that uses the nichol's-chart (NC) to achieve a desired robust design according to the plant parameter uncertainties. Both controllers have the ability to deal with uncertainty and unmodeled dynamics. Our aim of this research is to design a hybrid controller and control the 3 DOF helicopter model with the controller in an efficient way. Also, the controller would have the ability to satisfy all the uncertain characteristics of the 3 DOF model ensuring required adaptability and survivability. To achieve the objectives of the research, mathematical model of the controller, for every individual angle of 3 DOF model has been developed. The validation of results has been performed via MATLAB-Simulink. Result shows that the controller performs comparatively better than existing PID controller. Again, from the mathematical model obtained, QFT controller has been designed based on desired specifications using QFT toolbox. Several tests have been conducted with individual controllers', then the combined controllers with existing controllers and later with the proposed controller. At the end, the proposed hybrid controller has been applied to the 3 DOF helicopter model and determined the best performance of controller after several corrections. This research ends with the determination of best performance of the proposed hybrid controller for the 3 DOF helicopter model. Our results showed quite good performance of the hybrid controller to compare with other existing combined controller in case of adaptability with uncertainty. 
596 |a 1 
655 7 |a Theses, IIUM local 
690 |a Dissertations, Academic  |x Department of Electrical and Computer Engineering  |z IIUM 
710 2 |a International Islamic University Malaysia.  |b Department of Electrical and Computer Engineering 
856 4 |u http://studentrepo.iium.edu.my/handle/123456789/5190 
900 |a sbh-aaz-ls 
999 |c 440105  |d 472649 
952 |0 0  |6 T TJ 000217 B663R 2017  |7 0  |8 THESES  |9 763543  |a IIUM  |b IIUM  |c MULTIMEDIA  |g 0.00  |o t TJ 217 B663R 2017  |p 11100379140  |r 2018-10-01  |t 1  |v 0.00  |y THESIS 
952 |0 0  |6 TS CDF TJ 217 B663R 2017  |7 0  |8 THESES  |9 856523  |a IIUM  |b IIUM  |c MULTIMEDIA  |g 0.00  |o ts cdf TJ 217 B663R 2017  |p 00000873800  |r 2019-03-08  |t 1  |v 0.00  |y THESISDIG