Results 11 to 20 of about 270,159 (269)

Research on a demand response potential evaluation method for virtual power plant

open access: yesZhejiang dianli, 2023
In the context of constructing a new-type power system, the demand response management strategy focusing on virtual power plants participating in power grid scheduling and operation is of great significance.
ZHANG Bo   +6 more
doaj   +1 more source

Oscillation suppression strategy for modular multi‐level converter grid‐connected system based on virtual damping in modulation link

open access: yesIET Smart Grid, 2023
Modular multilevel converters (MMC) are widely used in power systems. However, relevant studies and reports show that MMC connected with the grid may cause oscillation problems.
Jialong Li   +6 more
doaj   +1 more source

No Load Simulation and Downscaled Experiment of UHV Single-Phase Autotransformer Under DC Bias

open access: yesIEEE Access, 2020
The time-domain field-circuit coupled finite element method (FEM) is widely used to analyze the DC effects on transformers. However, the long transient process of calculation will encounter difficulties due to the tremendous requirement of computer ...
Bing Li   +3 more
doaj   +1 more source

Power-Supply Systems Reliability Control [PDF]

open access: yesEAI Endorsed Transactions on Energy Web, 2018
System reliability control is proposed to maintain through the usage of the operating time between the system components' failure. Usually, trouble-free (reliability) is assessed considering component failures. Almost all the system probabilistic parameters were determined via the component failures.
A. N. Shpiganovich   +3 more
openaire   +2 more sources

POWER UNITS AND POWER SUPPLY SYSTEMS IN UAV

open access: yesAviation, 2014
One of the major tasks in the process of designing future unmanned aerial vehicles is the appropriate choice of a propulsion system and a power source. Depending on the role and size of a given UAV, the following engines are used: electric, jet, turbine and piston (combustion). The following paper also analyses the faultiness of UAVs.
Cwojdziński, Leszek, Adamski, Mirosław
openaire   +3 more sources

Analysis of the DC Bias Effects on the UHV Autotransformer with Rated Load Based on a Reduced-Scale Model Experiment

open access: yesApplied Sciences, 2020
The DC bias of transformers as a result of geomagnetically induced currents (GIC), monopole operation of high voltage direct current (HVDC) transmission and the increasing power electronic devices in the power grid, creates a high magnitude of ...
Bing Li   +3 more
doaj   +1 more source

A single‐ended protection method for flexible DC distribution grid

open access: yesIET Generation, Transmission & Distribution, 2023
Considering that no current limiting inductances (CLIs) are installed at the end of the DC line in the flexible DC distribution grid, the protections relying on line boundary are no longer applicable. To overcome this problem, the paper proposes a single‐
Xiuyan Wei   +5 more
doaj   +1 more source

Effect of TiO2 coating on the surface condition and corona characteristics of positive DC conductors with particle matters

open access: yesHigh Voltage, 2022
Persistent severe smog and dust weather exists in many regions of China. Particles accumulate on the surface of high‐voltage transmission lines, which affects the surface morphology of the transmission line and induces corona discharge.
Pei Xu   +5 more
doaj   +1 more source

Numerical analysis of thermoelectric power generation coupled with temperature-dependent material properties

open access: yesFrontiers in Energy Research, 2023
Thermoelectric generator (TEG) with improved performance is a promising technology in power supply and energy harvesting. Existing studies primarily adopt constant material properties to investigate TEG performance.
Chaoyang Xu   +7 more
doaj   +1 more source

Optimal Dispatch of Multi-Energy Integrated Micro-Energy Grid: A Model Predictive Control Method

open access: yesFrontiers in Energy Research, 2021
In order to reduce the impacts caused by large-scale renewable energy resources accessing the utility grid, the micro-energy grid system, as a natural extension of the microgrid in the energy internet era, is proposed and developed to provide a new ...
Xurui Huang   +5 more
doaj   +1 more source

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