Results 21 to 30 of about 27,060 (266)

Quantitative Homogenization in Nonlinear Elasticity for Small Loads [PDF]

Archive for Rational Mechanics and Analysis, 2018
We study quantitative periodic homogenization of integral functionals in the context of non-linear elasticity. Under suitable assumptions on the energy densities (in particular frame indifference; minimality, non-degeneracy and smoothness at the identity; $p\geq d$-growth from below; and regularity of the microstructure), we show that in a neighborhood
Stefan Neukamm, Mathias Schäffner
openaire   +2 more sources

A Four-Winding Inductive Filtering Transformer to Enhance Power Quality in a High-Voltage Distribution Network Supplying Nonlinear Loads

Energies, 2019
This paper solves the problem of reactive power and harmonics compensation in a high-voltage (HV) distribution network supplying nonlinear loads. An inductive filtering (IF) approach where passive filters connect to the filtering winding of a four ...
Yuehui Chen, Zhao Huang, Zhenfeng Duan, Pengwu Fu, Guandong Zhou, Longfu Luo   +5 more
doaj   +1 more source

Supraharmonic Pollution Emitted by Nonlinear Loads in Power Networks—Ongoing Worldwide Research and Upcoming Challenges

Energies, 2022
Researchers at many different institutions around the world study voltage and current waveform distortions in power networks using a variety of techniques.
Łukasz Michalec, Paweł Kostyła, Zbigniew Leonowicz   +2 more
doaj   +1 more source

A Mathematical Model for Home Appliances in a DC Home Nanogrid

Energies, 2023
A mathematical model for nonlinear loads, that contains, in its design, a switching power supply is presented. The model was tested in home appliances operating in a Direct Current Home Nanogrid (DCHN). Compact Fluorescent Lamps (CFLs) and LED lamps were
Miguel Cordova-Fajardo, Eduardo S. Tututi   +1 more
doaj   +1 more source

A Fast Power Calculation Algorithm for Three-Phase Droop-Controlled-Inverters Using Combined SOGI Filters and Considering Nonlinear Loads

Energies, 2022
The power calculation is an indispensable element in droop-controlled inverters because the bandwidth of the measured power has a direct impact on the controller performance.
Mingshen Li, Jose Matas, Jorge El Mariachet, Carlos Gustavo C. Branco, Josep M. Guerrero   +4 more
doaj   +1 more source

Effect of nonlinear slamming loads on the fatigue damage of a ship with large flare

Zhongguo Jianchuan Yanjiu, 2019
[Objectives] The traditional spectral fatigue analysis method only considers the effect of linear wave loads on fatigue life. For ships with large flare,how to reckon in the effect of nonlinear slamming loads is to be a difficulty in fatigue life ...
Xu Zhiting, Zhao Chao, Wang Fuhua
doaj   +1 more source

Comparison of Assessment Methods for the Connection of Nonlinear Loads to HV-EHV Power Systems

Zhongguo dianli, 2021
With the "double-high" development of power systems, the capacity of nonlinear loads or equipment is becoming increasingly larger, and the demand for their connection to the HV-EHV power systems is getting increasingly higher.
Xijuan YU, Hongtao LI, Xihuan MA, Shun TAO, Ning MA, Xiaoqing SONG, Yonghai XU   +6 more
doaj   +1 more source

NILM for Commercial Buildings: Deep Neural Networks Tackling Nonlinear and Multi-Phase Loads

Energies
As energy demand and electricity costs continue to rise, consumers are increasingly adopting energy-efficient practices and appliances, underscoring the need for detailed metering options like appliance-level load monitoring.
M. J. S. Kulathilaka, S. Saravanan, H. D. H. P. Kumarasiri, V. Logeeshan, S. Kumarawadu, Chathura Wanigasekara   +5 more
doaj   +1 more source

Applicability Limits of Fixed-Spectrum Harmonic Models in Weak Low-Voltage Networks

IEEE Access
This paper investigates the applicability limits of simplified fixed-spectrum harmonic current source models in low-voltage distribution networks under varying operating conditions.
Dawid Bula
doaj   +1 more source

Short-Term Electric Load Forecasting of Integrated Energy System Considering Nonlinear Synergy Between Different Loads

IEEE Access, 2021
As an efficient form of energy utilization, an integrated energy system integrates oil, natural gas, coal, and other energy sources and converts them into electric, cooling, and heating for users through energy conversion devices.
Biyun Chen, Yifeng Wang
doaj   +1 more source