Results 31 to 40 of about 3,142 (199)

A Grounding Current Prediction Method Based on Frequency-Enhanced Transformer

open access: yesEnergies
Concerning the problem that the coupling relationship in substation scenarios is complex and the Transformer model makes it difficult to capture the correlation between multiple variables of grounding current, resulting in low accuracy of grounding ...
Na Zhang   +3 more
doaj   +1 more source

Analisa Rugi-Rugi Daya Dan Jatuh Tegangan Pada Saluran Transmisi 150 kV GI Pati Bay GI Jekulo Menggunakan ETAP 12.6.0

open access: yesElektrika, 2020
In the electric power system, the transmission system is a pathway to transmit electrical energy from the generator to the substation or from the substation to another substation which allows power losses and large voltage drops if the transmission ...
Bayu Andik Anggoro   +2 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

Research on safety and energy efficiency monitoring technology for substation power system based on load holography perception

open access: yesAIP Advances
Substations are an important component of the power grid, and their energy consumption and operational reliability are crucial for the safe and stable operation of the power grid.
Yong Li, Jing Guo, Yanhu He, Runming He
doaj   +1 more source

Advancing Power Supply Resilience: Optimized Transmission Line Retrofitting Through Deep Q-Learning Algorithm

open access: yesEnergies
This study explores practical approaches to improving the reliability of power supply systems through the expansion and optimization of substation power lines.
Lin Liu   +3 more
doaj   +1 more source

Dry-Type Air-Core Series Reactor Turn-to-Turn Short Circuit Fault Detection Method Based on Multi-Parameter Data Fusion [PDF]

open access: yesDianli jianshe
[Objective] To address the problems of weak turn-to-turn short-circuit faults in dry-type air-core series reactors, which are difficult to recognize, and the lack of an early warning mechanism in traditional methods, this study proposes a multi ...
WANG Yin, WANG Yuanyuan, CAO Chengjun, ZHANG Lizhi, YIN Youpeng, JI Hongzhen, DOU Di
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

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

Identification of Low‐Value Defects in Infrared Images of Porcelain Insulators Based on STCE‐YOLO Algorithm

open access: yesEnergy Science & Engineering
Insulators, as a key component of the power system, their low‐value defect detection is of great significance to ensure the safe and stable operation of the power system.
Shaotong Pei   +6 more
doaj   +1 more source

Negative Impact Mitigation on the Power Supply System of a Fans Group with Frequency-Variable Drive

open access: yesEnergies, 2022
The technological installations’ characteristics are possible to improve by equipping fans with a frequency-controlled electric drive. However, it can lead to an electromagnetic compatibility problem in the electrical supply system.
Yerbol Yerbayev   +6 more
doaj   +1 more source

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