Results 21 to 30 of about 3,480,414 (223)

STATCOM Impact on Distance Relay Performance

Diyala Journal of Engineering Sciences, 2016
Flexible AC Transmission System devices provide for better utilization of already existing transmission systems as well as newly installed and upgraded systems.
Qais M. Alias
doaj   +1 more source

Intelligent inspection technology of protection device based on convolution neural network image recognition algorithm

电力工程技术, 2022
Relay protection device is an important part to ensure the safe and stable operation of power system. With the rapid increase of the number of substations and relay protection devices,the daily inspection workload of the operation and maintenance ...
WANG Ye, CUI Yu, LU Zhaoyan, TIAN Ming, ZHANG Guangjia   +4 more
doaj   +1 more source

Application of evolutionary algorithms for optimal directional overcurrent relay coordination [PDF]

, 2014
Includes bibliographical references.Relay coordination is necessary to ensure that while protection relays operate as fast as possible, they are also able to isolate only the faulted parts of the system from the network, ensuring that a power system ...
Stenane, Ndabeni Moses
core   +1 more source

A way to evaluate particles inducing soft errors in relay protection device: From Geant4 to fault injection platform [PDF]

AIP Advances
Relay protection devices that use advanced integrated circuits are increasingly exposed to soft errors caused by atmospheric neutrons and α particles. This work presents a fault injection method that uses radiation transport simulations to evaluate the ...
Hao Yu, Hualiang Zhou, Zhiyang Zou, Zhantao Su, Zheng Xu, Weitao Yang, Chaohui He   +6 more
doaj   +1 more source

Risk Assessment of Smart Substation Relay Protection System Based on Markov Model and Risk Transfer Network

Energies, 2020
To effectively guarantee a secure and stable operation of a smart substation, it is essential to develop a relay protection system considering the real-time online operation state evaluation and the risk assessment of that substation.
Dongliang Nan, Weiqing Wang, Rabea Jamil Mahfoud, Hassan Haes Alhelou, Pierluigi Siano, Mimmo Parente, Lu Zhang   +6 more
doaj   +1 more source

Research on the analysis method of power system relay protection action characteristics based on fault recording data

Journal of Radiation Research and Applied Sciences
The action characteristics of power system relay protection devices can well analyze whether the relevant actions are correct. An analysis method of relay protection action characteristics in power system based on fault recording data is designed.
Wen Guo, Xiaohu Hou
doaj   +1 more source

An Artificial Neural Network Developed in MATLAB-Simulink for Reconstruction a Distorted Secondary Current Waveform. Part 2

Известия высших учебных заведений и энергетических объединенний СНГ: Энергетика, 2022
Recently, there has been an increased interest in the use of artificial neural networks in various branches of the electric power industry including relay protection.
Yu. V. Rumiantsev, F. A. Romaniuk
doaj   +1 more source

Robust transceiver design for MIMO relay systems with tomlinson harashima precoding [PDF]

, 2012
In this paper we consider a robust transceiver design for two hop non-regenerative multiple-input multiple-output (MIMO) relay networks with imperfect channel state information (CSI).
Weiss, Stephan, Stewart, Robert W., Millar, Andrew Paul, Weiss, S., Stewart, Robert, Millar, Andrew   +5 more
core   +4 more sources

Research of risk assessment reliability of relay protection based on Three-parameter Weibull distributio

Gong-kuang zidonghua, 2016
In view of problems that traditional risk assessment and reliability analysis methods of power grid focused on relay protection reliability indicators and did not involve change of reliability and actual risk in operation of relay protection device, the ...
ZHOU Peiqiang, ZHOU Mengran, XIEYing, WANG Pingping, CAO Zhenguan, LUO Qian   +5 more
doaj   +1 more source

A new relay protection test system based on 5G and image recognition technology

Zhejiang dianli, 2022
As the traditional power grid has evolved into smart grid， testing of relay protection devices has shifted from manual mode to automatic model. By analyzing the shortcomings of the existing automatic testing systems， the paper proposes a new relay ...
WANG Junkang, WU Jishun, WANG Weidong, ZHAO Junyi, WANG Taotao, LUO Wei   +5 more
doaj   +1 more source