Results 21 to 30 of about 272,878 (339)

On Fractional-order PID Controllers [PDF]

open access: yesIFAC-PapersOnLine, 2018
A new Fractional Order Proportional-Integral (FOPI) controller tuning method is proposed in this paper for process control systems. This is achieved by combining Biggest Log-modulus Tuning (BLT) method and Internal Model Control (IMC) method of designing conventional PID controllers to tuning FOPI controllers for multivariable processes.
Edet, Emmanuel, Katebi, Reza
openaire   +2 more sources

Event-based fractional order control

open access: yesJournal of Advanced Research, 2020
The present study provides a generalization of event-based control to the field of fractional calculus, combining the benefits brought by the two approaches into an industrial-suitable control strategy. During recent years, control applications based on fractional order differintegral operators have gained more popularity due to their proven superior ...
Birs, Isabela Roxana   +3 more
openaire   +4 more sources

Synchronization of Fractional-Order Hyperchaotic Systems via Fractional-Order Controllers [PDF]

open access: yesDiscrete Dynamics in Nature and Society, 2014
In this paper, the synchronization of fractional-order chaotic systems is studied and a new fractional-order controller for hyperchaos synchronization is presented based on the Lyapunov stability theory. The proposed synchronized method can be applied to an arbitrary four-dimensional fractional hyperchaotic system.
Tianzeng Li, Yu Wang, Yong Yang
openaire   +3 more sources

An Optimized Hybrid Fractional Order Controller for Frequency Regulation in Multi-Area Power Systems

open access: yesIEEE Access, 2020
Multi-area power systems inhere complicated nonlinear response, which results in degraded performance due to the insufficient damping. The main causes of the damping problems are the stochastic behavior of the renewable energy sources, loading conditions,
E. A. Mohamed   +5 more
semanticscholar   +1 more source

Fractional-order position/force robot control [PDF]

open access: yesSecond IEEE International Conference on Computational Cybernetics, 2004. ICCC 2004., 2005
This paper studies fractional-order (FO) position/force algorithms in the hybrid control (HC) and the cascade control (CC) of manipulators. The system performance is analyzed, in the time and frequency domains, and the effects of joint backlash and flexibility are investigated.
Ferreira, N. M. Fonseca   +2 more
openaire   +3 more sources

Optimal frequency control in microgrid system using fractional order PID controller using Krill Herd algorithm [PDF]

open access: yes, 2020
This paper investigates the use of fractional order Proportional, Integral and Derivative (FOPID) controllers for the frequency and power regulation in a microgrid power system. The proposed microgrid system composes of renewable energy resources such as
Gabbar, Hossam   +4 more
core   +1 more source

The potential of fractional order distributed MPC applied to steam/water loop in large scale ships [PDF]

open access: yes, 2020
The steam/water loop is a crucial part of a steam power plant. However, satisfying control performance is difficult to obtain due to the frequent disturbance and load fluctuation.
Cajo Diaz, Ricardo Alfredo   +3 more
core   +1 more source

Adaptive fractional tracking control of robotic manipulator using fixed-time method

open access: yesComplex & Intelligent Systems, 2023
This paper proposes an adaptive fractional-order sliding mode controller to control and stabilize a nonlinear uncertain disturbed robotic manipulator in fixed-time.
Saim Ahmed, Ahmad Taher Azar
doaj   +1 more source

Optimal fractional‐order controller design using direct synthesis method

open access: yesIET Control Theory & Applications, 2020
: In this study, an optimal fractional-order controller is proposed for a type of fractional-order model utilising the direct synthesis method. In that respect, the fractional counterpart of the second-order integer transfer function is selected as a ...
E. Yumuk, M. Guzelkaya, I. Eksin
semanticscholar   +1 more source

A Conformal Mapping Based Fractional Order Approach for Sub-optimal Tuning of PID Controllers with Guaranteed Dominant Pole Placement [PDF]

open access: yes, 2012
A novel conformal mapping based Fractional Order (FO) methodology is developed in this paper for tuning existing classical (Integer Order) Proportional Integral Derivative (PID) controllers especially for sluggish and oscillatory second order systems ...
Das, Saptarshi   +3 more
core   +2 more sources

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