Results 241 to 250 of about 376,158 (286)

Designing a Cascade-Control Structure Using Fractional-Order Controllers: Time-Delay Fractional-Order Proportional-Derivative Controller and Fractional-Order Sliding-Mode Controller

Journal of Engineering Mechanics, 2017
AbstractThis paper considers a new cascade-control structure, which has an important difference from the other implemented cascade-control systems.
T. Binazadeh, M. Yousefi
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UBIQUITOUS FRACTIONAL ORDER CONTROLS?

IFAC Proceedings Volumes, 2006
Abstract There is an increasing interest in dynamic systems and controls of noninteger orders or fractional orders. Clearly, for closed-loop control systems, there are four situations. They are 1) IO (integer order) plant with IO controller; 2) IO plant with FO (fractional order) controller; 3) FO plant with IO controller and 4) FO plant with FO ...
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Tuning fractional order proportional integral controllers for fractional order systems

Journal of Process Control, 2010
Abstract In this paper, two fractional order proportional integral controllers are proposed and designed for a class of fractional order systems. For fair comparison, the proposed fractional order proportional integral (FOPI), fractional order [proportional integral] (FO[PI]) and the traditional integer order PID (IOPID) controllers are all designed ...
Ying Luo, Yang Quan Chen, Chun Yang Wang, You Guo Pi   +3 more
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Tuning fractional order proportional integral controllers for fractional order systems

2009 Chinese Control and Decision Conference, 2009
In this paper, two fractional order proportional integral controllers are designed to improve the performance and robustness for a class of fractional order systems which can better model many real systems such as bioengineering systems. For comparison between the fractional order proportional integral controllers and the traditional integer order PID (
null Ying Luo, ChunYang Wang, YangQuan Chen   +2 more
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Fractional order extremum seeking control

22nd Mediterranean Conference on Control and Automation, 2014
In this paper, we propose a new control scheme based on Extremum-Seeking (ES) combined with Fractional-Order Systems (FOS). This auto-tuning strategy involving a fractional order integral action, is developed to optimize the system response without external dithering, exploiting disturbances already present in the control system.
Amar Necaibia, Samir Ladaci, Abdelfatah Charef, Jean Jacques Loiseau   +3 more
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Review of Fractional Order Control

Advanced Materials Research, 2014
With the development of mathematical theory of fractional order, fractional order control system is more widely studied and discussed. In order to make the theory system of fractional order control systems perfect,this paper give out the review of fractional order control systems.The fractional order controller is divided into five categories to be ...
Bo Yang Leng, Zhi Dong Qi, Liang Shan, Hui Juan Bian   +3 more
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On Fractional-Order QFT Controllers

Journal of Dynamic Systems, Measurement, and Control, 2006
We propose the synthesis of robust fractional-order controllers using the principles of quantitative feedback theory (QFT). The resulting controllers are called as fractional-order QFT controllers. To demonstrate the synthesis method, we synthesize proportional-integral-derivative (PID) and more general types of fractional-order QFT controllers for a ...
NATARAJ, PSV, THAREWAL, S
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Fractional order self-tuning control

2015 IEEE 13th International Conference on Industrial Informatics (INDIN), 2015
This paper presents an innovative design method of polynomial control laws by mean of pole placement which are actually smart solutions to many industrial applications. Even if this category of controllers is very popular in industry, most of their applications concern problems of constant reference signals.
Samir Ladaci, Yassine Bensafia
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Fractional order control - A tutorial

2009 American Control Conference, 2009
Many real dynamic systems are better characterized using a non-integer order dynamic model based on fractional calculus or, differentiation or integration of non-integer order. Traditional calculus is based on integer order differentiation and integration.
YangQuan Chen, Ivo Petras, Dingyu Xue
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Fractional-Order Control: General Aspects

2020
The chapter presents the basic principles of fractional calculus and its application to the design and tuning of controllers for generic position and velocity systems. The complete tuning procedures for fractional-order PI/PD/PID controllers are presented, as well as some worked-out examples.
Cosmin Copot, Clara Mihaela Ionescu, Cristina I. Muresan   +2 more
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