Results 31 to 40 of about 18,501,661 (355)

Structural equation modelling and system dynamic in the detection of power quality events [PDF]

, 2012
The issues of power quality had been discussed since the starting of power system and it will keep on arise from time to time because power quality is important to electricity consumers at all levels of usage.
Azizan, Ashraf Zulfa
core   +1 more source

Grid integrated renewable DG systems: A review of power quality challenges and state‐of‐the‐art mitigation techniques

International Journal of Energy Research, 2019
Increased energy demands due to rapid industrialization, environmental concerns with fossil fuel–based generation, diminishing fossil energy resources, transmission network congestion, and technical performance deterioration are the motivations behind ...
Mohit Bajaj, A. Singh
semanticscholar   +1 more source

2-kW Average Power CW Phase-Conjugate Solid-State Laser [PDF]

, 2007
We have demonstrated stable operation of a 2-kW Yb:YAG phase-conjugate master oscillator power amplifier (PC-MOPA) laser system with a loop phase-conjugate mirror (LPCM). This is the first demonstration of a continuous wave (CW)-input LPCM MOPA operating
Baltimore, Robert S., Betin, Alexander A., Clatterbuck, Todd O., Filgas, David M., Ostby, Eric P., Rockwell, David A., Shkunov, Vladimir V., Strohkendl, Friederich P., Zakharenkov, Yuri A.   +8 more
core   +1 more source

Digital Current-Control Schemes [PDF]

, 2009
The paper is about comparing the performance of digital signal processor-based current controllers for three-phase active power filters. The wide use of nonlinear loads, such as front-end rectifiers connected to the power distribution systems for dc ...
Bojoi, Iustin Radu, Griva, Giovanni Battista, Limongi, Leonardo, Tenconi, Alberto   +3 more
core   +1 more source

Measurement Based Linear and Nonlinear Time Invariant Representations for High Voltage Inductive Transformer Frequency Response up to 10 kHz

IEEE Access
This paper presents the details of the development, evaluation process, and results of linear and nonlinear time-invariant models used to represent the frequency response of inductive high-voltage instrument transformers.
Imanka Dewayalage, Duane A. Robinson, Sean Elphick, Sarath Perera   +3 more
doaj   +1 more source

Effect of Relative Humidity and Air Temperature on the Results Obtained from Low-Cost Gas Sensors for Ambient Air Quality Measurements

Sensors, 2020
Using low-cost gas sensors for air quality monitoring promises cost effective and convenient measurement systems. Nevertheless, the results obtained have a questionable quality due to different factors that can affect sensor performance.
Abdul Samad, Daniel Ricardo Obando Nuñez, Grecia Carolina Solis Castillo, Bernd Laquai, Ulrich Vogt   +4 more
doaj   +1 more source

Assessment of Coarse, Fine, and Ultrafine Particles in S-Bahn Trains and Underground Stations in Stuttgart

Atmosphere, 2022
The Stuttgart S-Bahn network comprises six subway lines and is used by approximately 425,000 people on a daily basis. In previous studies in other cities, it was found that subways can be a source and collection point of particulate matter (PM), which is
Abdul Samad, Kathryn Arango, Diego Alvarez Florez, Ioannis Chourdakis, Ulrich Vogt   +4 more
doaj   +1 more source

Power Quality Enhancement in Electricity Grids with Wind Energy Using Multicell Converters and Energy Storage [PDF]

, 2019
In recent years, the wind power industry is experiencing a rapid growth and more wind farms with larger size wind turbines are being connected to the power system.
Allali, Ahmed, Denai, Mouloud, Kaddour, Fouad, Khodja, Mohamed, Merabet Boulouiha , Houari, Rahiel, Djelloul   +5 more
core   +2 more sources

Impact of Multiple Grid-Connected Solar PV Inverters on Harmonics in the High-Frequency Range

Energies
In recent years, integration of solar photovoltaic (PV) systems into distribution networks has been increasing rapidly, as it has become the most promising renewable energy source (RES) in the transition of power generation from centralised to ...
Kasun Peiris, Sean Elphick, Jason David, Duane Robinson   +3 more
doaj   +1 more source

Power Quality Control of Smart Hybrid AC/DC Microgrids: An Overview

IEEE Access, 2019
Today, conventional power systems are evolving to smart grids, which encompass clusters of AC/DC microgrids, interfaced through power electronics converters.
F. Nejabatkhah, Y. Li, Hao Tian
semanticscholar   +1 more source