Results 51 to 60 of about 10,025,076 (325)

Fractional-Order Inductor: Design, Simulation, and Implementation

open access: yesIEEE Access, 2021
Fractional calculus has tremendous potential in modeling the evolution of complex systems including those with memory. Indeed, fractional-order models are more accurate in approximating non-locally distributed dynamics with short- or long-term memory ...
Li Zhang   +4 more
doaj   +1 more source

Fractional Order Estimation Schemes for Fractional and Integer Order Systems with Constant and Variable Fractional Order Colored Noise [PDF]

open access: yesCircuits, Systems, and Signal Processing, 2014
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Sierociuk, Dominik, Ziubinski, Pawel
openaire   +2 more sources

Modeling and Control Research of Fractional-Order Cascaded H-Bridge Multilevel STATCOM

open access: yesFractal and Fractional
This paper introduces fractional-order capacitors and fractional-order inductors into the conventional integer-order cascaded H-bridge multilevel static compensator (ICHM-STATCOM), thereby constructing the main circuit of the fractional-order cascaded H ...
Junhua Xu   +5 more
doaj   +1 more source

Design and practical implementation of a fractional order proportional integral controller (FOPI) for a poorly damped fractional order process with time delay

open access: yes, 2019
One of the most popular tuning procedures for the development of fractional order controllers is by imposing frequency domain constraints such as gain crossover frequency, phase margin and iso-damping properties.
Birs, Isabela Roxana   +4 more
core   +1 more source

Optimal B-spline bases for the numerical solution of fractional differential problems [PDF]

open access: yes, 2018
Efficient numerical methods to solve fractional differential problems are particularly required in order to approximate accurately the nonlocal behavior of the fractional derivative.
Pitolli, Francesca
core   +2 more sources

CFOA-Based Fractional Order PIλDδ Controller [PDF]

open access: yesElectronics, 2017
Conventional Current Feedback Operational Amplifier (CFOA) is not current controllable or not electronically controllable. It is thus of interest to add a current mirror into the CFOA in order to make it current controllable.
Tada Comedang, Pattana Intan
doaj   +1 more source

Non-existence of periodic solutions in fractional-order dynamical systems and a remarkable difference between integer and fractional-order derivatives of periodic functions

open access: yes, 2011
Using the Mellin transform approach, it is shown that, in contrast with integer-order derivatives, the fractional-order derivative of a periodic function cannot be a function with the same period.
Kaslik, Eva, Sivasundaram, Seenith
core   +1 more source

DISTRIBUTED ORDER FRACTIONAL SUB-DIFFUSION [PDF]

open access: yesFractals, 2004
A distributed order fractional diffusion equation is considered. Distributed order derivatives are fractional derivatives that have been integrated over the order of the derivative within a given range. In this paper, sub-diffusive cases are considered. That is, the order of the time derivative ranges from zero to one.
openaire   +3 more sources

Adaptive Fuzzy Control for Fractional-Order Interconnected Systems With Unknown Control Directions [PDF]

open access: yesIEEE transactions on fuzzy systems, 2020
This article concentrates on the study of the decentralized fuzzy control method for a class of fractional-order interconnected systems with unknown control directions.
Bingyun Liang   +3 more
semanticscholar   +1 more source

Hybrid Systems and Control With Fractional Dynamics (I): Modeling and Analysis

open access: yes, 2014
No mixed research of hybrid and fractional-order systems into a cohesive and multifaceted whole can be found in the literature. This paper focuses on such a synergistic approach of the theories of both branches, which is believed to give additional ...
HosseinNia, S. Hassan   +2 more
core   +1 more source

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