Results 21 to 30 of about 180,789 (314)

Mode for reducing wind curtailment based on battery transportation

open access: yesJournal of Modern Power Systems and Clean Energy, 2018
Renewable energy sources, such as wind and solar, face several obstacles, including curtailment, where the generated energy exceeds local demand and production must be reduced because of limited transmission capacity.
Zhanlong ZHANG   +5 more
doaj   +1 more source

Artificial Neural Network Controller in Two-Area and Five-Area System with Security Attack and Game-Theory Based Defender Action

open access: yes, 2022
Smart grids are the latest technology to generate and dispatch an optimal amount of power. Thus, there is a need for stability analysis in smart grid systems. If the smart grid is incorporated into the power system, then the phasor measurement unit (PMU)
V. Madhusudhan   +2 more
core   +1 more source

Thermal Aging Characteristics of Newly Synthesized Triester Insulation Oil

open access: yesIEEE Access, 2019
High-stability triester insulation oil derived from the trimethylolpropane esters (TME) was synthesized by esterifying saturated fatty acids and trimethylolpropane (TMP). The TME oil shows higher AC breakdown voltage (Vb, 72.6 kV/2.5 mm) than that of FR3
Kaizheng Wang   +6 more
doaj   +1 more source

Quantifying contact status and the air-breakdown model of charge-excitation triboelectric nanogenerators to maximize charge density

open access: yesNature Communications, 2020
Surface charge density is a key factor for developing high performance triboelectric nanogenerators. Herein, authors establish criteria to quantitatively evaluate the contact efficiency and air breakdown model on charge excitation triboelectric ...
Yike Liu   +8 more
doaj   +1 more source

Oil‐paper insulation partial discharge ultrasonic multifrequency sensing array based on fibre‐optic Fabry–Perot sensor

open access: yesHigh Voltage, 2022
In order to improve the sensitivity and accuracy of oil‐paper insulation partial discharge detection by the fibre‐optic Fabry–Perot (FP) ultrasonic sensor, this work studied the ultrasonic signal’s frequency characteristics of typical oil‐paper ...
Zhixian Zhang   +6 more
doaj   +1 more source

Priority research questions for the UK food system [PDF]

open access: yes, 2013
The rise of food security up international political, societal and academic agendas has led to increasing interest in novel means of improving primary food production and reducing waste.
Ingram, John S I   +249 more
core   +1 more source

W4IPS: A Web-based Interactive Power System Simulation Environment For Power System Security Analysis [PDF]

open access: yes, 2020
Modern power systems are increasingly evolving Cyber-Physical Systems (CPS) that feature close interaction between Information and Communication Technology (ICT), physical and electrical devices, and human factors.
Davis, Katherine   +5 more
core   +1 more source

A Novel Method to Directly Analyze Dissolved Acetic Acid in Transformer Oil without Extraction Using Raman Spectroscopy

open access: yesEnergies, 2017
Analyzing the concentration of low molecular acids dissolved in oil is vital in the oil-paper insulation aging diagnostic procedure of power transformers. The existing methods cannot distinguish between different acid types and their strengths.
Fu Wan   +5 more
doaj   +1 more source

A Data Mining Approach for Transformer Failure Rate Modeling Based on Daily Oil Chromatographic Data

open access: yesIEEE Access, 2020
Evaluating the real-time failure rate of transformers can effectively guide the planning of maintenance and reduce their failure risk. This paper proposed a novel transformer failure rate model that considers the impact of maintenance based on daily oil ...
Wei Huang   +10 more
doaj   +1 more source

Impact of wind power on the unit commitment, operating reserves and market design

open access: yes, 2011
Paper presented at the 2011 IEEE Power and Energy Society General Meeting, San Diego, CA, 24-29 July 2011This article highlights and demonstrates the new requirements variable and partly unpredictable wind power will bring to unit commitment and power ...
Milligan, M.   +25 more
core   +1 more source

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