Results 21 to 30 of about 10,658,834 (304)

Research on the side converter system of wind power grid based on fractional LCL filter

open access: yesEnergy Science & Engineering, 2023
The power electronic converters and grid‐connected filters were important components of the permanent magnet direct drive wind power generation system whose performance directly determines the quality of wind power generation. In past modeling, analysis,
Xiaoping Huang   +4 more
doaj   +1 more source

Towards Industrialization of FOPID Controllers: A Survey on Milestones of Fractional-Order Control and Pathways for Future Developments

open access: yesIEEE Access, 2021
The interest in fractional-order (FO) control can be traced back to the late nineteenth century. The growing tendency towards using fractional-order proportional-integral-derivative (FOPID) control has been fueled mainly by the fact that these ...
A. Tepljakov   +7 more
semanticscholar   +1 more source

A Review of Recent Developments in Autotuning Methods for Fractional-Order Controllers

open access: yesFractal and Fractional, 2022
The scientific community has recently seen a fast-growing number of publications tackling the topic of fractional-order controllers in general, with a focus on the fractional order PID.
C. Muresan   +4 more
semanticscholar   +1 more source

Differences of fractional order [PDF]

open access: yesMathematics of Computation, 1974
Derivatives of fractional order, D α
Diaz, J. B., Osler, T. J.
openaire   +2 more sources

Fractional‐order backstepping strategy for fractional‐order model of COVID‐19 outbreak [PDF]

open access: yesMathematical Methods in the Applied Sciences, 2021
The coronavirus disease (COVID‐19) pandemic has impacted many nations around the world. Recently, new variant of this virus has been identified that have a much higher rate of transmission. Although vaccine production and distribution are currently underway, non‐pharmacological interventions are still being implemented as an important and fundamental ...
Amir Veisi, Hadi Delavari
openaire   +3 more sources

Optimized Design of OTA-Based Gyrator Realizing Fractional-Order Inductance Simulator: A Comprehensive Analysis

open access: yesApplied Sciences, 2020
A detailed analysis of an operational transconductance amplifier based gyrator implementing a fractional-order inductance simulator is presented.
David Kubanek   +4 more
doaj   +1 more source

Fractional Order Fuzzy Dispersion Entropy and Its Application in Bearing Fault Diagnosis

open access: yesFractal and Fractional, 2022
Fuzzy dispersion entropy (FuzzDE) is a very recently proposed non-linear dynamical indicator, which combines the advantages of both dispersion entropy (DE) and fuzzy entropy (FuzzEn) to detect dynamic changes in a time series.
Yuxing Li   +3 more
semanticscholar   +1 more source

Geometrical study and solutions for family of burgers-like equation with fractional order space time

open access: yesAlexandria Engineering Journal, 2022
One of the basic hydrodynamic models is the famous Burgers formula. This describes the creation of the sticky particle velocity field which interacts only when it collides.
Emad A-B. Abdel-Salam   +2 more
doaj   +1 more source

On Passivity of Fractional Order Systems [PDF]

open access: yesSIAM Journal on Control and Optimization, 2019
We generalize notions of passivity and dissipativity to fractional order systems. Similar to integer order systems, we show that the proposed definitions generate analogous stability and compositionality properties for fractional order systems as well.
Mohsen Rakhshan   +2 more
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.
Isabela Birs   +3 more
doaj   +1 more source

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