Results 71 to 80 of about 1,779 (134)

Development of diagnostic and prognostic algorithms for SF6 puffer circuit breakers from transient waveforms: a validation proposal [PDF]

open access: yes, 2009
- This paper presents a validation proposal for development of diagnostic and prognostic algorithms for SF6 puffer circuit-breakers reproduced from actual site waveforms.
Kam, Shui-cheong, Ledwich, Gerard
core   +1 more source

Robust transfer function identification via an enhanced magnitude vector fitting algorithm [PDF]

open access: yes, 2010
The study introduces an enhanced version of the magnitude vector fitting (magVF) algorithm, a robust procedure for the identification of a transfer function from magnitude frequency domain data.
De Tommasi, L, Dhaene, Tom, Gustavsen, B
core   +1 more source

A Curve Fitting–Based Directional Protection of Transmission Lines Using Genetic Programing

open access: yesJournal of Sensors, Volume 2024, Issue 1, 2024.
In modern power systems, there is a growing need for protection techniques that are fast, precise, and stable to enhance the reliability and stability of power networks. This paper introduces an advanced technique for fault direction estimation that addresses key limitations in existing methods.
Sabah Daniar   +3 more
wiley   +1 more source

Cause Identification of Electromagnetic Transient Events using Spatiotemporal Feature Learning

open access: yes, 2019
This paper presents a spatiotemporal unsupervised feature learning method for cause identification of electromagnetic transient events (EMTE) in power grids.
Arghandeh, Reza   +3 more
core  

Modelling and simulation of three-phase power transformers [PDF]

open access: yes, 1999
This paper presents the development and implementation of a digital simulation model of a three-phase, three-leg, power transformer. The proposed model, implemented in MATLAB environment, is based on the physical concept of representing windings as ...
Cardoso, A. J. Marques   +1 more
core  

The application of fault signature analysis in Tenaga Nasional Berhad Malaysia [PDF]

open access: yes, 2007
Unplanned electrical power outages are a major concern to power utilities throughout the whole world. Unfortunately, power outages will continue to occur and they cannot be fully prevented.
Karim, S. P. A.   +1 more
core   +1 more source

The Performance and Robustness of Power Protection Schemes for Grid‐Connected PV Systems Under Varied Smart Inverter Controllers

open access: yesInternational Journal of Energy Research, Volume 2024, Issue 1, 2024.
The increasing use of inverter‐based distributed generation requires a comprehensive study of its effects on fault analysis and the effectiveness of protection systems in distribution networks. This study examines the impact of different inverter control modes on multiple types of protective relay schemes. These include different overcurrent relay (OCR)
Feras Alasali   +7 more
wiley   +1 more source

Blitzeinschlagsanalyse für rückwärtige Überschläge einer Hybridleitung [PDF]

open access: yes, 2015
A new method to transfer energy over short and long distances is to use hybrid lines. In this paper a lightning surge analysis for backflashovers on overhead transmission lines with one DC and three AC systems on the same tower is considered ...
Kizilcay, Mustafa   +2 more
core  

Kernel solver design of FPGA-based real-time simulator for active distribution networks [PDF]

open access: yes, 2018
The field-programmable gate array (FPGA)-based real-time simulator takes advantage of many merits of FPGA, such as small time-step, high simulation precision, rich I/O interface resources, and low cost.
Fu, Xiaopeng   +5 more
core   +2 more sources

Impact of VSC Converter Topology on Fault Characteristics in HVDC Transmission Systems [PDF]

open access: yes, 2016
This work presents the outcome of a comprehensive study that assesses the transient behaviour of two high voltage direct current (HVDC) networks with similar structures but using different converter topologies, termed two-level and half-bridge (HB ...
Ademi, Sul   +4 more
core   +1 more source

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