Results 21 to 30 of about 64,776 (264)

An Active and Reactive Power Controller for Battery Energy Storage System in Microgrids

open access: yesIEEE Access, 2022
Battery energy storage systems (BESS) are widely used for renewable energy applications, especially in stabilizing the power system with ancillary services.
Jun-Ting Gao   +3 more
doaj   +1 more source

Model predictive control for smooth distributed power adaptation [PDF]

open access: yes2012 IEEE Wireless Communications and Networking Conference (WCNC), 2012
This paper addresses the distributed power adaptation (DPA) problem on the downlink for wireless cellular networks. As a consequence of uncoordinated local scheduling decisions in classical networks, the base stations produce mutual uncontrolled interference on their co-channel users. This interference is of a variable nature, and is hardly predictable,
Garcia, Virgile   +2 more
openaire   +2 more sources

A robust anisotropic diffusion filter with low arithmetic complexity for images

open access: yesEURASIP Journal on Image and Video Processing, 2019
Image smoothing with edge preservation in the presence of outliers is a challenge in image processing. Anisotropic diffusion smoothing is a well-established paradigm in digital image smoothing with edge preservation.
Resmi R. Nair   +2 more
doaj   +1 more source

The Power of First-Order Smooth Optimization for Black-Box Non-Smooth Problems

open access: yes, 2022
Gradient-free/zeroth-order methods for black-box convex optimization have been extensively studied in the last decade with the main focus on oracle calls complexity. In this paper, besides the oracle complexity, we focus also on iteration complexity, and propose a generic approach that, based on optimal first-order methods, allows to obtain in a black ...
Gasnikov, Alexander   +8 more
openaire   +4 more sources

Universal Regularization Methods: Varying the Power, the Smoothness and the Accuracy [PDF]

open access: yesSIAM Journal on Optimization, 2019
Adaptive cubic regularization methods have emerged as a credible alternative to linesearch and trust-region for smooth nonconvex optimization, with optimal complexity amongst second-order methods. Here we consider a general/new class of adaptive regularization methods, that use first- or higher-order local Taylor models of the objective regularized by ...
Cartis, C, Gould, N, Toint, P
openaire   +3 more sources

Intelligent Wind Power Smoothing Control using Fuzzy Neural Network

open access: yesE3S Web of Conferences, 2018
An intelligent wind power smoothing control using fuzzy neural network (FNN) is proposed in this study. First, the modeling of wind power generator and the designed battery energy storage system (BESS) are introduced.
Lin Faa-Jeng   +2 more
doaj   +1 more source

Modelling and control of vanadium redox flow battery for smoothing wind power fluctuation

open access: yesIET Renewable Power Generation, 2021
Due to the negative impact of a highly stochastic wind power fluctuation on the power quality and stability during high penetration of wind power in power systems, there is growing interest in power smoothing and energy redistribution in wind power ...
Feng‐Chang Gu, Hung‐Cheng Chen
doaj   +1 more source

Approximation power of smooth bivariate PP functions

open access: yesMathematische Zeitschrift, 1988
Bivariate piecewise polynomials in \(C^{\rho}\) of degree \(\leq k\) on some triangulation \(\Delta\) are shown to approximation to smooth functions to within \(| \Delta | ^{k+1}\) if \(k>3\rho +1\). The argument makes essential use of the Bernstein-Bézier polynomial form.
Boor, C. de, Höllig, K.
openaire   +2 more sources

Power Smoothing Enhancement in Hybrid System Using Neural Network Controller [PDF]

open access: yesE3S Web of Conferences
A novel hybrid energy system featuring a neural network (NN) controller for enhanced power smoothing is proposed in this research. The system integrates a wind turbine and a solar array to generate renewable electricity. However, the inherent variability
Gopalakrushna A.   +3 more
doaj   +1 more source

Operating Hydrogen-Based Energy Storage Systems in Wind Farms for Smooth Power Injection: A Penalty Fees Aware Model Predictive Control

open access: yesEnergies, 2022
Smooth power injection is one of the possible services that modern wind farms could provide in the not-so-far future, for which energy storage is required.
Valerio Mariani   +2 more
doaj   +1 more source

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