Results 1 to 10 of about 321,444 (266)

Remote online monitoring system for transformer winding deformation based on current–voltage characterized graph

Energy Reports, 2023
Transformer winding deformation threatens the power system’s safe and stable operation, and early detection of transformer winding deformation can reduce economic losses.
Yan Zhou, Yugui Ma, Ming Dai, Tianyu Zhu, Jian Du, Hao Wu, Zhigang Liao   +6 more
doaj   +2 more sources

Trajectories entropy in dynamical graphs with memory [PDF]

Frontiers in Robotics and AI, 2016
In this paper we investigate the application of non-local graph entropy to evolving and dynamical graphs. The measure is based upon the notion of Markov diffusion on a graph, and relies on the entropy applied to trajectories originating at a specific ...
Francesco eCaravelli
doaj   +4 more sources

Low-Voltage Topology Description Method Based on Graph-Relation Model for Distribution Grid With Large-Scale and High-Frequency Measurement

IEEE Access
The intricate structure and frequent online reconfiguration of low-voltage distribution lines result in massive, multi-version dynamic topologies that are challenging to acquire and analyze for operational applications.
Junfeng Qiao, Lin Peng, Aihua Zhou, Meizhao Liu, Pei Yang, Min Xu, Sen Pan   +6 more
doaj   +2 more sources

Analyzing Impact of Distributed PV Generation on Integrated Transmission & Distribution System Voltage Stability—A Graph Trace Analysis Based Approach [PDF]

Energies, 2020
The use of a Graph Trace Analysis (GTA)-based power flow for analyzing the voltage stability of integrated Transmission and Distribution (T&D) networks is discussed in the context of distributed Photovoltaic (PV) generation.
Bilal Ahmad Bhatti, Robert Broadwater, Murat Dilek   +2 more
doaj   +2 more sources

Graph Neural Networks for Voltage Stability Margins With Topology Flexibilities

IEEE Open Access Journal of Power and Energy, 2023
High penetration of distributed energy resources (DERs) changes the flows in power grids causing thermal congestions which are managed by real-time corrective topology switching.
Kishan Prudhvi Guddanti, Yang Weng, Antoine Marot, Benjamin Donnot, Patrick Panciatici   +4 more
doaj   +2 more sources

Graph-Based Topological Embedding and Deep Reinforcement Learning for Autonomous Voltage Control in Power System

Sensors
With increasing power system complexity and distributed energy penetration, traditional voltage control methods struggle with dynamic changes and complex conditions.
Hongtao Wei, Siyu Chang, Jiaming Zhang
doaj   +2 more sources

Development of coordinated control method based on Graph search method between EV and DG for voltage regulation

International Journal of Electrical Power & Energy Systems
In this paper, a study is conducted to solve voltage problems that may occur, when large-scale Distributed Generations (DGs) and Electric Vehicles (EVs) are connected to the distribution system, through coordinated control between DGs and EVs.
Jisoo Kim, Jean Mahseredjian
doaj   +2 more sources

Spatial-Temporal Recurrent Graph Neural Networks for Fault Diagnostics in Power Distribution Systems

IEEE Access, 2023
Fault diagnostics are extremely important to decide proper actions toward fault isolation and system restoration. The growing integration of inverter-based distributed energy resources imposes strong influences on fault detection using traditional ...
Bang L. H. Nguyen, Tuyen V. Vu, Thai-Thanh Nguyen, Mayank Panwar, Rob Hovsapian   +4 more
doaj   +1 more source

Knowledge graph-based method for identifying topological structure of low-voltage distribution network

The Journal of Engineering, 2020
The correct topological relationship is crucial in the low-voltage distribution network, as the actual topological structure of the low-voltage distribution network changes frequently and tremendously due to the need of operation and maintenance, and it ...
Gao Zepu, Luo Yongjian, Xu Ziwei, Yu Yilan, Zhang Lianmei   +4 more
doaj   +1 more source

Distributed Volt-Var Curve Optimization Using a Cellular Computational Network Representation of an Electric Power Distribution System

Energies, 2022
Voltage control in modern electric power distribution systems has become challenging due to the increasing penetration of distributed energy resources (DER).
Hasala Dharmawardena, Ganesh Kumar Venayagamoorthy   +1 more
doaj   +1 more source