Results 1 to 10 of about 208,350 (119)

Linear, Nonlinear, and Distributed-Parameter Observers Used for (Renewable) Energy Processes and Systems—An Overview

Energies
Full- and reduced-order observers have been used in many engineering applications, particularly for energy systems. Applications of observers to energy systems are twofold: (1) the use of observed variables of dynamic systems for the purpose of feedback ...
Zoran Gajic, Verica Radisavljevic-Gajic, Dimitri Karagiannis   +2 more
exaly   +3 more sources

Observer-Based Fault-Tolerant Predictive Control for LPV Systems with Sensor Faults: An Active Car Suspension Application

Applied Sciences, 2022
In this paper, an observer-based robust fault-tolerant predictive control (ORFTPC) strategy is proposed for Linear Parameter-Varying (LPV) systems subject to input constraints and sensor failures.
Abdelaziz Abboudi, Sofiane Bououden, Mohammed Chadli, Ilyes Boulkaibet, Bilel Neji   +4 more
doaj   +1 more source

SoC Estimation in Lithium-Ion Batteries with Noisy Measurements and Absence of Excitation

Batteries, 2023
Accurate State-of-Charge estimation is crucial for applications that utilise lithium-ion batteries. In real-time scenarios, battery models tend to present significant uncertainty, making it desirable to jointly estimate both the State of Charge and ...
Miquel Martí-Florences, Andreu Cecilia Piñol, Alejandro Clemente, Ramon Costa-Castelló   +3 more
doaj   +1 more source

NEW VARIABLE STAR IN THE ORION CONSTELLATION

Odessa Astronomical Publications, 2017
New variable star with α = 05° 57m22s, δ = +20°15.5' (1950) was discovered with elements JD Max=2436999.28 + 0.2343973 E, range 15.6- 16.2m (pg) and asymmetry M-m=0.26.
I. S. Brjukhanov, V. P. Goranskij
doaj   +1 more source

Covert channels in stochastic cyber‐physical systems

IET Cyber-Physical Systems, 2021
A covert channel is a communication channel that is not intended to exist, and that can be used to transfer information in a manner that violates the system security policy. Attackers can abuse such channels to exfiltrate sensitive information from cyber‐
Walter Lucia, Amr Youssef
doaj   +1 more source

Robust Output Feedback Control of the Voltage Source Inverter in an AC Microgrid

Energies, 2022
This paper presents the mathematical model and control of the voltage source inverter (VSI) connected to an alternating current (AC) microgrid. The VSI used in this work was a six-switch three-phase PWM inverter, whose output voltages were controlled in ...
Hamid Saeed Khan, Attaullah Y. Memon
doaj   +1 more source

THE DETERMINATION OF PERIODS AND THE DEFINITION OF VARIABILITY TYPE OF NEW VARIABLE STAR IRAS 17583+5150

Odessa Astronomical Publications, 2017
The measurements of brightness of the star IRAS 17583+5150 discovered using the Odessa observatory negatives are discussed in the article. The proposed types of these stars are IRAS 17583+5150 -- type SRB (SRC).
A. P. Solonovich, I. S. Bryukhanov
doaj   +1 more source

A Nonlinear Observer for Robust Fault Reconstruction in One-Sided Lipschitz and Quadratically Inner-Bounded Nonlinear Descriptor Systems

IEEE Access, 2021
This article introduces a nonlinear observer to reconstruct faults in a class of nonlinear descriptor systems affected by disturbances, in both the state and output equations.
Joseph Chang Lun Chan, Tae H. Lee, Chee Pin Tan, Hieu Trinh, Ju H. Park   +4 more
doaj   +1 more source

OBSERVATIONS OF VARIABLE STARS WITH SMALL TELESCOPES

Odessa Astronomical Publications, 2017
No ...
I. S. Bryukhanov
doaj   +1 more source

HD 66051, an eclipsing binary hosting a highly peculiar, HgMn-related star

Scientific Reports, 2017
HD 66051 is an eclipsing system with an orbital period of about 4.75 d that exhibits out-of-eclipse variability with the same period. New multicolour photometric observations confirm the longevity of the secondary variations, which we interpret as a ...
Ewa Niemczura, Stefan Hümmerich, Fiorella Castelli, Ernst Paunzen, Klaus Bernhard, Franz-Josef Hambsch, Krzysztof Hełminiak   +6 more
doaj   +1 more source