Results 31 to 40 of about 3,149,182 (297)

Pilot protection based on the quasi-directional element of LCL-tuned half-wavelength transmission line

International Journal of Electrical Power & Energy Systems
To create HWTL characteristics, the electrical distance of AC transmission lines is compensated to half the power frequency wavelength by utilizing tuned circuits.
Yutao Tang, Hongchun Shu, Yue Dai, Yu Zhang, Yiming Han   +4 more
doaj   +1 more source

Detailed modelling and analysis of digital mho distance relay with single-pole operation

Acta Polytechnica, 2021
This paper introduces a methodology for modelling a digital admittance-type distance relay using PSCAD/EMTDC. The proposed distance relay was tested in a simulation of the Brazilian power grid with predetermined fault scenarios. The goal of this paper is
Paulo Henrique Barbosa de Souza Pinheiro, Mayara Helena Moreira Nogueira Santos, Angelo Cesar Colombini, Bruno Wanderley França, Marcio Zamboti Fortes   +4 more
doaj   +1 more source

Adaptability analysis of distance protection in flexible low frequency ac outgoing transmission line of wind power system

Results in Engineering
The extension of offshore wind power to medium and far seas has promoted the development of flexible low-frequency AC transmission (FLFAC) technology. However, the fault responses of the power electronic interface-type power sources (wind turbines and ...
Yue Dai, Hongchun Shu, Yutao Tang, Haoming Liu   +3 more
doaj   +1 more source

Comparative Analysis of Real-Time Fault Detection Methods Based on Certain Artificial Intelligent Algorithms for a Hydrogen–Oxygen Rocket Engine

Aerospace, 2022
The real-time fault detection and diagnosis algorithm of a liquid rocket engine is the basis of online reconfiguration of guidance and the control system of a launch vehicle, which is directly related to the success or failure of space mission.
Peihao Huang, Tao Wang, Lin Ding, Huhuang Yu, Yong Tang, Dianle Zhou   +5 more
doaj   +1 more source

Encoders and fault detection

2003 European Control Conference (ECC), 2003
Monitoring large-scale systems is of fundamental importance in modern infrastructures. Many of these large-scale systems are complex interconnections of sub-components which interact by means of communication channels with limited bandwidth. Therefore the information must be encoded in order to be transmitted.
openaire   +2 more sources

Fault detection for markovian jump systems with sensor saturations and randomly varying nonlinearities [PDF]

, 2012
This is the post-print version of the Article. The official published version can be accessed from the link below - Copyright @ 2012 IEEE.This paper addresses the fault detection problem for discrete-time Markovian jump systems with incomplete knowledge ...
Wang, Z, Gao, H, Dong, H
core   +1 more source

An adaptive reclosing scheme for flexible DC grid based on residual voltage S-transformation

Scientific Reports
When a fault occurs on a line, it is necessary to quickly isolate the fault to improve the safety and reliability of the transmission system. Due to the lack of effective ability to identify the nature of faults, the traditional automatic reclosing ...
Yue Dai, Hongchun Shu, Na An, Yutao Tang, Yiming Han   +4 more
doaj   +1 more source

Time-domain impedance pilot protection of MMCHVDC transmission line based on modulus characteristics

Results in Engineering
Flexible HVDC transmission systems provide flexible and efficient solutions for new energy grid integration and asynchronous interconnection of AC systems, and represent a major trend in the future development of power grids.
Yue Dai, Hongchun Shu, Haoming Liu, Xuefei Zhang, Yutao Tang, Na An   +5 more
doaj   +1 more source

Effectiveness of Resistance Intradialytic Exercise Compared to Aerobic Intradialytic Exercise for Patients With Chronic Kidney Disease: A Randomized Controlled Clinical Trial

Therapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Background Patients with chronic kidney disease undergoing hemodialysis commonly experience reduced physical function, fatigue, poor sleep quality, and impaired health‐related quality of life. Intradialytic exercise has been proposed as a non‐pharmacological strategy to improve these outcomes.
Klebson da Silva Almeida, Gisela Cristiane Miyamoto, Daniel da Costa Torres, Ian Setubal Reis Chaves, Jonas do Carmo Paschoalin, Braúlio Lima Nascimento, Luciana Dias Chiavegato   +6 more
wiley   +1 more source

Two‐Step Clustering‐Based Equivalent Modeling of Large‐Scale Wind Farms for Enhanced Primary Frequency Regulation

Wind Energy
The focus on wind power frequency regulation has largely been on individual wind farms, which presents challenges in meeting the coordinated operation needs of multiple stations within large‐scale installations.
Hongchun Shu, Liuqing Zhu, Botao Shi, Guangxue Wang, Shunguang Lei   +4 more
doaj   +1 more source