Results 41 to 50 of about 1,976 (165)

Research on DC component decay time constant of 1000 kV AC filter circuit breakers in UHV converter station

open access: yesThe Journal of Engineering, 2019
In hierarchically connected UHV DC projects, the 1000 kV AC filter sub-bank in converter station is provided with two 500 kV circuit breakers. To determine the test DC component decay time constant when breakers break short-circuit current, relevant DC ...
Li Zhenqiang   +3 more
doaj   +1 more source

Research on Classification of Substation Background Information for Monitoring [PDF]

open access: yesE3S Web of Conferences, 2019
The substations are important parts of modern electrical grids. The monitoring of background information in substations should be carefully managed to keep the smoothly operating of the electrical system. However, there are still some problems in present
Yang Wang   +3 more
doaj   +1 more source

Optimal Placement of Grid Battery Energy Storage Systems for Congestion Mitigation and Enhanced Power‐Flow Control Considering Uncertainties in Photovoltaic Deployment

open access: yesIEEJ Transactions on Electrical and Electronic Engineering, EarlyView.
Amidst the global drive toward carbon neutrality, the integration of large‐scale photovoltaic (PV) systems introduces significant challenges related to grid congestion. Battery energy storage systems (BESSs) are increasingly recognized as an effective solution for addressing these challenges and improving grid operations, especially under the ...
Sakurako Kuraguchi   +7 more
wiley   +1 more source

ABOUT THE LOAD FACTOR OF POWER TRANSFORMERS OF THE RAILWAY TRACTION SUBSTATIONS

open access: yesNauka ta progres transportu, 2009
The author has proposed the criterion and method of determination of optimum load factors of power transformers of railway traction substations.
V. H. Kuznetsov
doaj  

ARCADES: analysis of risk from cyberattack against defensive strategies for the power grid

open access: yesIET Cyber-Physical Systems, 2018
In this study, the authors introduce ARCADES (Analysis of Risk from Cyberattack against DEfensive Strategy), a technique to systematically explore the cybersecurity defence strategies based on contingency rankings in power systems.
Md Touhiduzzaman   +3 more
doaj   +1 more source

Calculating the Interconnection Limit from a Comprehensive Voltage Evaluation for Distribution Systems with Large Distributed Energy Resources

open access: yesIEEJ Transactions on Electrical and Electronic Engineering, EarlyView.
Japan is pursuing power source decarbonization and is thus reducing fuel‐based thermal power generation while promoting renewable energy resource use. Given the expected power fluctuations, this transition will require novel voltage management and control methods.
Satoshi Uemura   +2 more
wiley   +1 more source

FARIMA model-based communication traffic anomaly detection in intelligent electric power substations

open access: yesIET Cyber-Physical Systems, 2019
The technological advances of intelligent electric substations have significantly improved the operational performance of power utilities by incorporating advanced monitoring and control functionalities.
Qiang Yang   +4 more
doaj   +1 more source

Optimal Capacity Sizing for the Integration of a Battery and Photovoltaic Microgrid to Supply Auxiliary Services in Substations under a Contingency

open access: yesEnergies, 2020
Auxiliary services are vital for the operation of a substation. If a contingency affects the distribution feeder that provides energy for the auxiliary services, it could lead to the unavailability of the substation’s service.
Alejandra Tabares   +5 more
doaj   +1 more source

Short‐Term Multi‐Horizon Line Loss Rate Forecasting of a Distribution Network Using Attention‐GCN‐LSTM

open access: yesCAAI Transactions on Intelligence Technology, EarlyView.
ABSTRACT Accurately predicting line loss rates is crucial for effective management in distribution networks, particularly for short‐term multihorizon forecasts ranging from 1 hour to 1 week. In this study, we propose attention‐GCN–LSTM, a novel method that integrates graph convolutional networks (GCN), long short‐term memory (LSTM) and a three‐level ...
Jie Liu   +4 more
wiley   +1 more source

Smart management system for improving the reliability and availability of substations in smart grid with distributed generation

open access: yesThe Journal of Engineering, 2019
Electrical power control and management is the key towards improving the efficiency and security of energy supply. Proper management would help in safely diversifying energy supplies, reducing energy consumption during peak load, and improving grid ...
Shady S. Refaat, Amira Mohamed
doaj   +1 more source

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