Wszystkie pola: transmission lines - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Location of arc faults on power transmission lines
Autorzy:: Pustułka, M
Iżykowski, J
Łukowicz, M
Powiązania:: https://bibliotekanauki.pl/articles/410527.pdf
Data publikacji:: 2013
Wydawca:: Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:: arc fault
fault location
signal processing
Opis:: This paper presents a fault location algorithm, which allows to determine the distance to a fault and fault resistance, as a result of considering natural fault loops. It is assumed that three-phase voltages and currents from both ends of the line measured asynchronously are the input signals of the fault locator. In case of the availability of synchronized measurements the elements associated with the determination of the synchronization angle should be omitted. In addition to natural fault loop signals also use of symmetrical components (positive and negative or incremental positive sequence components) to fault location were considered as well.
Źródło:: Present Problems of Power System Control; 2013, 3; s. 95-102
2084-2201
Pojawia się w:: Present Problems of Power System Control
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Neural network filtration for arc faults location on power transmission lines
Autorzy:: Pustułka, M.
Iżykowski, J.
Łukowicz, M.
Powiązania:: https://bibliotekanauki.pl/articles/410589.pdf
Data publikacji:: 2013
Wydawca:: Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:: arc fault
fault location
signal processing
filtration
Opis:: This paper presents filtration using neural network for arc fault location, which allows to determine the distance to a fault, as a result of considering natural fault loops. It is assumed that three-phase voltages and currents from both ends of the line are the input signals of the fault locator and naturally of the neutral network applied for filtering the input signals. In addition to natural fault loop signals also use of symmetrical components (positive and negative or incremental positive sequence components) to fault location were considered as well. Results of evaluation study have been included, analyzed and discussed. Influence of filtration has been also considered.
Źródło:: Present Problems of Power System Control; 2013, 4; 37-49
2084-2201
Pojawia się w:: Present Problems of Power System Control
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 3.

Tytuł:: Transitional processes at switching-off unloaded power transmission lines by modern circuit-breakers and their computer simulation
Autorzy:: Lazimov, T.
Saafan, E.
Powiązania:: https://bibliotekanauki.pl/articles/410587.pdf
Data publikacji:: 2013
Wydawca:: Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:: SF6 circuit-breakers
power transmission lines
computer simulation
transitional voltages
Opis:: The article presents results of transitional processes computer simulation at switching-off unloaded power transmission line of rated voltage 220 kV by auto-compression (SF6) circuit-breakers. Transitional voltages (voltage across the line terminals and recovery voltage) at switching-off were calculated and studied in the research carried out. There was also considered dependence between transitional voltages magnitudes and power transmission lines lengths. There were studied some computational peculiarities of the problem under consideration. In particular, the numbers of pi-sections provided satisfactory adequacy of lines equivalency at computer simulation for their typical lengths were determined. There were also estimated optimum simulation parameters provided stability of transitional regime parameters.
Źródło:: Present Problems of Power System Control; 2013, 4; 67-75
2084-2201
Pojawia się w:: Present Problems of Power System Control
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 4.

Tytuł:: Zastosowanie sztucznych sieci neuronowych do lokalizacji zwarć w liniach elektroenergetycznych
Fault location of power transmission lines using artificial neural network
Autorzy:: Łukowicz, M.
Pustułka, M.
Powiązania:: https://bibliotekanauki.pl/articles/1808041.pdf
Data publikacji:: 2011
Wydawca:: Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:: sieci neuronowe
systemy elektroenergetyczne
cyfrowe przetwarzanie sygnałów
Opis:: The article presents the method of fault location on power transmission lines passed on artificial neural networks. Determination of fault place is based on knowledge of the fault type and measurements of voltage and current magnitudes from one end of the line. The accuracy of the method was tested for different operating conditions of 400kV power transmission line. The results confirm the high accuracy of the proposed method.
Źródło:: Prace Naukowe Instytutu Maszyn, Napędów i Pomiarów Elektrycznych Politechniki Wrocławskiej. Studia i Materiały; 2011, 65, 31; 453-458
1733-0718
Pojawia się w:: Prace Naukowe Instytutu Maszyn, Napędów i Pomiarów Elektrycznych Politechniki Wrocławskiej. Studia i Materiały
Dostawca treści:: Biblioteka Nauki

Artykuł

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