Results 81 to 90 of about 36,908 (274)

A Robust Fractional-Order PID Controller Based Load Frequency Control Using Modified Hunger Games Search Optimizer

open access: yesEnergies, 2022
In this article, a recent modified meta-heuristic optimizer named the modified hunger games search optimizer (MHGS) is developed to determine the optimal parameters of a fractional-order proportional integral derivative (FOPID) based load frequency ...
A. Fathy   +4 more
semanticscholar   +1 more source

Liquid Metals in Radio Frequency Applications: A Review of Physics, Manufacturing, and Emerging Technologies

open access: yesAdvanced Electronic Materials, EarlyView.
This paper reviews the physics of liquid metals in RF devices, including the influence of mechanical strain on resonance as well as fabrication methods and strategies for designing tunable and strain‐tolerant inductors, capacitors, and antennas.
Md Saifur Rahman, William J. Scheideler
wiley   +1 more source

Fractional Model Reference Adaptive PIλDμ Control

open access: yesJournal of New Results in Science, 2016
This study explains the auto-adjustable fractional order the proportional–integral–derivative (PID) controller design methodology by using the technique of fractional model reference adaptive control (fractional MRAC).
Hüseyin Arpacı   +2 more
doaj  

Improved model reduction and tuning of fractional-order PI(λ)D(μ) controllers for analytical rule extraction with genetic programming [PDF]

open access: yes, 2018
This is the author accepted manuscript. The final version is available from Elsevier via the DOI in this record.Genetic algorithm (GA) has been used in this study for a new approach of suboptimal model reduction in the Nyquist plane and optimal time ...
Das, S, Das, S, Gupta, A, Pan, I
core   +1 more source

Self‐Driving Laboratory Optimizes the Lower Critical Solution Temperature of Thermoresponsive Polymers

open access: yesAdvanced Intelligent Discovery, EarlyView.
A low‐cost, self‐driving laboratory is developed to democratize autonomous materials discovery. Using this "frugal twin" hardware architecture with Bayesian optimization, the platform rapidly converges to target lower critical solution temperature (LCST) values while self‐correcting from off‐target experiments, demonstrating an accessible route to data‐
Guoyue Xu, Renzheng Zhang, Tengfei Luo
wiley   +1 more source

FRACTIONAL ORDER PROPORTIONAL-INTEGRAL-DIFFERENTIAL BASED CONTROLLER DESIGN FOR DC MOTOR SPEED CONTROL [PDF]

open access: yes, 2021
Fractional order calculus has become a growing area in the field of control theory. This phenomenon allows us to describe and model a real object more accurately than the conventional “integer” methods.
Prof. Ashok M. Jain, Sanket Hari Nankar
core   +4 more sources

Fractional Order Internal Model PID Control for Pulp Batch Cooking Process

open access: yesJournal of Chemical Engineering of Japan, 2023
Pulp batch cooking is performed in a sealed high-temperature and high-pressure digester and is a complex black-box process. Based on the analysis of the mechanism of batch cooking, a model with nonlinear characteristics was established.
Wenjuan Shan, Yifeng Wang, Wei Tang
doaj   +1 more source

An optimized fractional order PID controller for suppressing vibration of AC motor [PDF]

open access: yes, 2016
Fractional order Proportional-Integral-Derivative (PID) controller is composed of a number of integer order PID controllers. It is more accurate to control the complex system than the traditional integer order PID controller.
Chang Dong   +4 more
core   +2 more sources

Determination of all stabilizing fractional-order PID controllers [PDF]

open access: yesProceedings of the 2011 American Control Conference, 2011
A new method for finding all fractional-order (FO) proportional-integral-derivative (PID) controllers that stabilize a given system of integer or non-integer order is proposed. The stability boundaries of such FO PID controllers are calculated in the frequency domain and are given in terms of the proportional gain K p , integral gain K i , and ...
Yung K. Lee, John M. Watkins
openaire   +1 more source

A self-adaptive fractional-order PID controller for the particle velocity regulation in a pneumatic conveying system

open access: yesTransactions of the Institute of Measurement and Control
This paper presents the methodical development of a state-error-driven self-adaptive fractional-order proportional–integral–derivative (AFOPID) control algorithm to efficiently regulate the velocity of pneumatically conveyed particles at the desired set ...
F. Abbas   +3 more
semanticscholar   +1 more source

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