Results 21 to 30 of about 3,345,371 (299)

Induction machine fault detection enhancement using a stator current high resolution spectrum [PDF]

, 2012
Fault detection in squirrel cage induction machines based on stator current spectrum has been widely investigated. Several high resolution spectral estimation techniques have been developed and used to detect induction machine abnormal operating ...
CHARPENTIER, Jean-Frederic, Vincent Choqueuse, EL BOUCHIKHI, El Houssin, BENBOUZID, Mohamed, Choqueuse, Vincent, V., Mohamed Benbouzid, El Houssin El Bouchikhi, Jean Frederic Charpentier, CHOQUEUSE, Vincent   +8 more
core   +1 more source

The nullspace method - a unifying paradigm to fault detection [PDF]

, 2009
The nullspace method is a powerful framework to solve the synthesis problem of fault detection filters in the most general setting. It is also well suited to address the least order synthesis problem. In the same time, the nullspace method represents
A. Varga, Varga, Andreas
core   +1 more source

Design of Fault Detection Filters for Periodic Systems [PDF]

, 2004
We propose a numerically reliable computational approach to design fault detection filters for periodic systems. This approach is based on a new numerically stable algorithm to compute least order annihilators without explicitly building time-invariant ...
A. Varga, Varga, Andras
core   +1 more source

A Fault Detection Toolbox for MATLAB [PDF]

, 2006
The recently developed FAULT DETECTION Toolbox for MATLAB is described. The new toolbox provides a comprehensive set of high level m-functions to support the design of residual generation filters using reliable numerical algorithms recently developed by ...
A. Varga, Varga, Andreas
core   +1 more source

Estimation of inertia demand in power systems considering wind power virtual inertia

International Journal of Electrical Power & Energy Systems
The high proportion of renewable energy integrated into the grid through numerous power electronic devices has reduced the overall system inertia level and operational stability and caused poor disturbance resistance.
Hongchun SHU, Haifei DONG, Jing CHEN, Guangxue WANG, Xi WANG, Botao SHI   +5 more
doaj   +1 more source

Lightweight Fault Detection Strategy for Wireless Sensor Networks Based on Trend Correlation

IEEE Access, 2021
In this work, we propose a fault detection strategy for wireless sensor networks (WSNs) called Trend Correlation based Fault Detection strategy (TCFD).
Xiuwen Fu, Ye Wang, Wenfeng Li, Yongsheng Yang, Octavian Postolache   +4 more
doaj   +1 more source

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