Results 41 to 50 of about 26,243 (274)
Novel blade angle controllers techniques based on heuristics algorithms
Ain Shams Engineering Journal, 2022 The raised pollution census and the electricity demand–supply gab are significantly increasing the investments in the wind energy (WE). Thus, the paper is dedicated to the wind farm blade angle controllers’ efficiency.
Ahmed M. Shawqran +3 more
doaj +1 more source
, 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
CFOA-Based Fractional Order PIλDδ Controller
Electronics ETF, 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. This modification can be achieved by using Diamond Transistor (DT) instead of going through complicated IC fabrication process ...
Tada Comedang, Pattana Intan
openaire +3 more sources
Design and analysis of a multivariable fractional order controller for a non-minimum phase system [PDF]
, 2015 Two control strategies for multivariable processes are proposed that are based on a decentralised and a steady state decoupling approach. The designed controllers are fractional order PIs.
Copot, Cosmin +4 more
core +2 more sources
Optimal frequency control in microgrid system using fractional order PID controller using Krill Herd algorithm [PDF]
, 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
Implementing Discrete-time Fractional-order Controllers [PDF]
Journal of Advanced Computational Intelligence and Intelligent Informatics, 2001 The theory of fractional calculus goes back to the beginning of the theory of differential calculus but its inherent complexity postponed the application of the associated concepts. In the last decade the progress in the areas of chaos and fractals revealed subtle relationships with the fractional calculus leading to an increasing interest in the ...
openaire +2 more sources
Application of a Fractional Order Integral Resonant Control to increase the achievable bandwidth of a nanopositioner [PDF]
, 2017 The congress program will essentially include papers selected on the highest standard by the IPC, according to the IFAC guidelines www.ifac-control.org/publications/Publications-requirements-1.4.pdf, and published in open access in partnership with ...
Aphale, Sumeet S +2 more
core +1 more source
Molecular bases of circadian magnesium rhythms across eukaryotes
FEBS Letters, EarlyView.Circadian rhythms in intracellular [Mg2+] exist across eukaryotic kingdoms. Central roles for Mg2+ in metabolism suggest that Mg2+ rhythms could regulate daily cellular energy and metabolism. In this Perspective paper, we propose that ancestral prokaryotic transport proteins could be responsible for mediating Mg2+ rhythms and posit a feedback model ...
Helen K. Feord, Gerben van Ooijen
wiley +1 more source
Event-Based Implementation of Fractional Order IMC Controllers for Simple FOPDT Processes
Mathematics, 2020 Fractional order calculus has been used to generalize various types of controllers, including internal model controllers (IMC). The focus of this manuscript is towards fractional order IMCs for first order plus dead-time (FOPDT) processes, including ...
Cristina I. Muresan +2 more
doaj +1 more source
FEBS Letters, EarlyView.This perspective highlights emerging insights into how the circadian transcription factor CLOCK:BMAL1 regulates chromatin architecture, cooperates with other transcription factors, and coordinates enhancer dynamics. We propose an updated framework for how circadian transcription factors operate within dynamic and multifactorial chromatin landscapes ...
Xinyu Y. Nie, Jerome S. Menet
wiley +1 more source