A change-detection algorithm for short-circuit fault detection in closed-loop AC drives [PDF]
, 2013 This paper deals with an on-line method for turn-to-turn short-circuit fault detection in low-voltage permanent-magnet synchronous machine drives. Due to the closed-loop control, the fault effects are reflected in the voltage.
Johan Gyselinck +10 more
core +1 more source
A Hilbert–Huang Transform-Based Adaptive Fault Detection and Classification Method for Microgrids
Energies, 2021 Fault detection in microgrids is of great significance for power systems’ safety and stability. Due to the high penetration of distributed generations, fault characteristics become different from those of traditional fault detection.
Yijin Li +4 more
doaj +1 more source
Research on Maintenance Fault Diagnosis System for E-class High-Performance Computer [PDF]
Jisuanji gongcheng, 2022 E-class computer systems typically have huge scales.Consequently, the total number of abnormal faults is bound to increase, resulting in difficulty in fault diagnosis.Thus, there is an urgent need for the development of a more accurate and efficient real-
JIAN Lantao, REN Xiujiang, ZHANG Zhen, SHI Song, HUANG Yiming, ZHANG Chunlin
doaj +1 more source
On the representation of sensor faults in fault detection filters [PDF]
Proceedings of 32nd IEEE Conference on Decision and Control, 1994 Presents an extension of the well known Beard-Jones detection filter that permits the isolation of sensor faults in a dynamic system to a fixed direction. The method is based on augmenting the system equations by an auxiliary state to represent the dynamic behavior of the sensor fault, and in effect converts the sensor fault into the same form as an ...
Jaehong Park +2 more
openaire +3 more sources
Prediction and Fault Detection of Environmental Signals with Uncharacterised Faults
Proceedings of the AAAI Conference on Artificial Intelligence, 2021 Many signals of interest are corrupted by faults of anunknown type. We propose an approach that uses Gaus-sian processes and a general “fault bucket” to capturea priori uncharacterised faults, along with an approxi-mate method for marginalising the potential faultinessof all observations.
Osborne, M +3 more
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Robust Fault Detection of Switched Linear Systems with State Delays
, 2009 This correspondence deals with the problem of robust fault detection for discrete-time switched systems with state delays under an arbitrary switching signal.
Shi, Peng +7 more
core +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 +4 more
doaj +1 more source
Least order fault and model detection using multi-models
, 2009 Multi-model based fault detection is often a viable alternative to various multi-model based state estimation techniques using banks of Kalman filters.
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 SystemsThe 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 +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 +4 more
doaj +1 more source