Fractional order controller design for a large class of process models

2014 ◽  
Author(s):  
Eva H. Dulf ◽  
Cristina I. Muresan ◽  
Roxana Both ◽  
Francisc V. Dulf
Keyword(s):  
Large Class ◽  
Fractional Order ◽  
Controller Design ◽  
Process Models ◽  
Fractional Order Controller

scholarly journals Simplified Fractional Order Controller Design Algorithm

Mathematics ◽  
2019 ◽  
Vol 7 (12) ◽  
pp. 1166 ◽  
Author(s):  
Eva-Henrietta Dulf
Keyword(s):  
Frequency Domain ◽  
Fractional Order ◽  
Closed Loop ◽  
Controller Design ◽  
Process Models ◽  
System Of Nonlinear Equations ◽  
Design Algorithm ◽  
Wide Range ◽  
Fractional Order Controller ◽  
Tuning Rules

Classical fractional order controller tuning techniques usually establish the parameters of the controller by solving a system of nonlinear equations resulted from the frequency domain specifications like phase margin, gain crossover frequency, iso-damping property, robustness to uncertainty, etc. In the present paper a novel fractional order generalized optimum method for controller design using frequency domain is presented. The tuning rules are inspired from the symmetrical optimum principles of Kessler. In the first part of the paper are presented the generalized tuning rules of this method. Introducing the fractional order, one more degree of freedom is obtained in design, offering solution for practically any desired closed-loop performance measures. The proposed method has the advantage that takes into account both robustness aspects and desired closed-loop characteristics, using simple tuning-friendly equations. It can be applied to a wide range of process models, from integer order models to fractional order models. Simulation results are given to highlight these advantages.

scholarly journals Novel Optimum Magnitude Based Fractional Order Controller Design Method

2018 ◽  
Vol 51 (4) ◽  
pp. 912-917 ◽  
Author(s):  
Eva-H. Dulf ◽  
Mircea Șușcă ◽  
Levente Kovács
Keyword(s):  
Fractional Order ◽  
Controller Design ◽  
Design Method ◽  
Fractional Order Controller

Fractional Order Flight Control of a Small Fixed-Wing UAV: Controller Design and Simulation Study

2009 ◽  
Author(s):  
Haiyang Chao ◽  
Ying Luo ◽  
Long Di ◽  
YangQuan Chen
Keyword(s):  
Fractional Order ◽  
Flight Control ◽  
Controller Design ◽  
Design Method ◽  
Simulation Studies ◽  
Order Model ◽  
Small Uav ◽  
Aerial Vehicle ◽  
Fractional Order Pi Controller ◽  
Fractional Order Controller

This paper focuses on designing and implementation of fractional order proportional integral (PIα) flight controller on a small fixed-wing unmanned aerial vehicle (UAV). It describes mainly the controller design and simulation studies. The basics of UAV flight control are introduced first with a special emphasis on small UAV platforms. Time domain system identification methods are tried on the UAV roll channel. A new fractional order PI controller design method is then provided based on the identified first order model. The fractional order PIα controller can outperform the traditional integer order PID controller because it has a larger memory and more candidate solutions to choose. The simulation results show the effectiveness of the proposed controller design strategy and the robustness of fractional order controller under conditions of wind gusts and various pay-loads.

scholarly journals Model-based fractional order controller design

2017 ◽  
Vol 50 (1) ◽  
pp. 10431-10436 ◽  
Author(s):  
Z. Yakoub ◽  
M. Chetoui ◽  
M. Amairi ◽  
M. Aoun
Keyword(s):  
Fractional Order ◽  
Controller Design ◽  
Model Based ◽  
Fractional Order Controller
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