Results 91 to 100 of about 54,969 (263)

Rotational speed control of multirotor UAV's propulsion unit based on fractional-order PI controller [PDF]

open access: yes, 2017
In this paper the synthesis of a rotational speed closed-loop control system based on a fractional-order proportional-integral (FOPI) controller is presented.
Coelho, J.P.   +5 more
core   +1 more source

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

Modeling and Power Regulation Strategy of Variable‐Speed Pumped Storage Unit With Full‐Size Converter in Pump Mode

open access: yesEnergy Science &Engineering, EarlyView.
A numerical model of variable‐speed pumped storage unit (VSPSU) with full‐size converter (FSC) under fast speed control strategy is established. Additionally, the correctness of the model was validated by comparing with SIMSEN simulation results and text prototype data from NARI.
Weijia Yang   +5 more
wiley   +1 more source

Hybrid Systems and Control With Fractional Dynamics (II): Control

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

Robust Control Using a Matrix Converter to Enhance Wind Turbine Systems

open access: yesEnergy Science &Engineering, EarlyView.
This study uses a more efficient and effective solution to improve the operational performance of a wind turbine‐based power system. This system uses a doubly fed induction generator and relies on a matrix converter and fractional‐order proportional–integral controller.
Sihem Ghoudelbourk   +4 more
wiley   +1 more source

Fractional Order Fuzzy Control of Hybrid Power System with Renewable Generation Using Chaotic PSO [PDF]

open access: yes, 2018
This is the author accepted manuscript. The final version is available from Elsevier via the DOI in this record.This paper investigates the operation of a hybrid power system through a novel fuzzy control scheme.
Das, S, Pan, I
core   +1 more source

A Comparative performance evaluation of a complex-order PI controller for DC–DC converters

open access: yesResults in Control and Optimization
Switched-mode DC–DC converters are required to maintain constant output under uncertainties and variations in input voltage and load. The controller’s robustness is crucial in such systems, and hence various controllers have been proposed in the past few
Preeti Warrier   +2 more
doaj   +1 more source

Optimal PI $^{{\lambda}}$ D $^{{\mu}}$ Controller Design for Two Wheeled Inverted Pendulum

open access: yesIEEE Access, 2018
Fractional order controllers have a growing popularity in last years and they give more flexibility to researchers for designing a controller. In this paper, a fractional order PID controller is designed for the position control of a two wheeled inverted
Huseyin Oktay Erkol
doaj   +1 more source

Disturbance‐Resilient Voltage/Power‐Quality Management for Islanded Inverters Using Self‐Tuning Type‐3 Fuzzy Controller

open access: yesEnergy Science &Engineering, EarlyView.
An adaptive fuzzy controller using an interval type‐3 fuzzy logic system replaces the SMC switching term to mitigate chattering while preserving global stability for islanded inverters. Simulations show lower THD, greater robustness to disturbances and parameter variations, and improved voltage‐tracking accuracy, with applicability to other uncertain ...
Man‐Wen Tian   +7 more
wiley   +1 more source

Fractional order control for a bidirectional converter operating in a DC

open access: yesInformador Técnico, 2020
This paper presents the control design of a bidirectional converter used to support a DC microgrid. The chosen topology for this purpose is the bidirectional buck-boost converter, for which its mathematical model is obtained.
César Trujillo-Rodríguez   +2 more
doaj   +1 more source

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