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Wyszukujesz frazę "Łukaszewski, Piotr" wg kryterium: Autor


Wyświetlanie 1-7 z 7
Tytuł:
Decentralized fault location, isolation and self restoration (FLISR) logic implementation using IEC 61850 GOOSE signals
Autorzy:
Bielenica, Paweł
Widzińska, Joanna
Łukaszewski, Artur
Nogal, Łukasz
Łukaszewski, Piotr
Powiązania:
https://bibliotekanauki.pl/articles/2173702.pdf
Data publikacji:
2022
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
smart grids
distributed grid automation
IEC 61850
GOOSE signal
FLISR
FDIR
FLIR
inteligentne sieci
automatyzacja sieci rozproszona
sygnał GOOSE
Opis:
Fault location, isolation and self-restoration (FLISR) automation is an essential component of smart grids concept. It consists of a high level of comprehensive automation and monitoring of the distribution grid improving the quality of energy supplied to customers. This paper presents an algorithm for decentralized FLISR architecture with peer-to-peer communication using IEC 61860 GOOSE messages. An analysis of short circuit detection was presented due to the method of the grid earthing system. The proposed automation model was built based on communication logic between configured intelligent electronic devices (IED) from ABB and Siemens. The laboratory tests were conducted in a half-loop grid model with a bilateral power supply (typical urban grid). The laboratory research concerned three locations of short circuits: between substation and section point, between two section points and between section point and normally open point (NOP). The logic implementation was developed using State Sequencer software offered by Test Universe.
Źródło:
Bulletin of the Polish Academy of Sciences. Technical Sciences; 2022, 70, 5; art. no. e143101
0239-7528
Pojawia się w:
Bulletin of the Polish Academy of Sciences. Technical Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Strength of industrial sandstones modelled with the Discrete Element Method
Autorzy:
Klejment, Piotr
Dziedziczak, Robert
Łukaszewski, Paweł
Powiązania:
https://bibliotekanauki.pl/articles/2041291.pdf
Data publikacji:
2021
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
sandstone strength
material resistance
numerical modelling
uniaxial compression strength
Discrete Element Method
ESyS-Particle
Opis:
Sandstone is one of the most popular building materials since the earliest times. It has various textures and colours as well as good technical parameters. Sandstones, having such wide applications, are subjected to various external factors during the period of use. So, it is of utmost importance to have a good knowledge of their strength parameters. We employed a numerical method called Discrete Element Method to examine in a non-invasive manner the mechanical strength of industrial sandstones, that are commonly used as broken stones in road construction, cladding material, paving stones, pavement tiles and so on. Various mechanical external factors were considered, such as breaking, compressional and abrasion forces or impact by external objects and vibrations. Fragmentation of the considered sandstones under compressional regime was a source of knowledge about energy storage inside the material and energy release, as well as appearance of fractures inside the matter and final sandstone fragmentation into crumbs.
Źródło:
Studia Geotechnica et Mechanica; 2021, 43, 4; 346-365
0137-6365
2083-831X
Pojawia się w:
Studia Geotechnica et Mechanica
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-7 z 7

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