Temat: brushless excitation - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Study of prototype multi-pole non-salient field winding for high speed brushless synchronous generator
Autorzy:: Kutt, F.
Kostro, G.
Michna, M.
Ronkowski, M.
Powiązania:: https://bibliotekanauki.pl/articles/1813550.pdf
Data publikacji:: 2012
Wydawca:: Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:: synchronous generator
non-salient field winding
high speed
brushless excitation
autonomous electrical power system
Opis:: In this paper a non-salient field winding for a brushless synchronous generator working with high speed in an autonomous energy generation system (e.g. airplane power grid) has been presented. A conception of a six-pole cylindrical-rotor with distributed field winding has been proposed. Comparison study of salient and prototype non-salient field winding has been carried out. Chosen simulation and measurement results of the generator stator voltage and current waves have been presented.
Źródło:: Prace Naukowe Instytutu Maszyn, Napędów i Pomiarów Elektrycznych Politechniki Wrocławskiej. Studia i Materiały; 2012, 66, 32; 273-278
1733-0718
Pojawia się w:: Prace Naukowe Instytutu Maszyn, Napędów i Pomiarów Elektrycznych Politechniki Wrocławskiej. Studia i Materiały
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Comparison of different methods for excitation of synchronous machines
Autorzy:: Schmuelling, S.
Kreischer, Ch.
Gołȩbiowski, M.
Powiązania:: https://bibliotekanauki.pl/articles/1367718.pdf
Data publikacji:: 2015
Wydawca:: Sieć Badawcza Łukasiewicz - Instytut Napędów i Maszyn Elektrycznych Komel
Tematy:: AC machines
Brushless machines
Electromagnetic transients
Excitation system
Power system simulation
Opis:: The energy turnaround in Germany leads to new operating conditions for small and medium synchronous generators. Since the electricity generation through renewable energy sources, such as wind or photovoltaic, is highly volatile, generators have to run up from standstill into rated operation within several minutes. Hence, it is necessary to compensate a lack of electricity generation caused by wrong weather forecasts. Usually, gas turbine systems provide this possibility. The generator is used as a starter engine due to the connection to a frequency inverter. The excitation current is often provided by static excitation systems. Thus, it is possible to start from standstill and run up the drive until the gas turbine is able to generate a positive torque. A new excitation concept, based on an induction machine with a 3-phase rotor winding, is able to provide an excitation current at 0 rpm and eliminates the need for brushes. To verify the applicability for power systems, both systems are compared under different aspects. The control of the excitation current at different speeds and the possibility to settle shaft oscillations after electrical faults are aspects researched in the paper at hand. A power system simulation is performed with a synchronous machine connected to a grid. Both excitation systems are modeled by equivalent circuit diagrams in Matlab Simscape.
Źródło:: Maszyny Elektryczne: zeszyty problemowe; 2015, 3, 107; 89-93
0239-3646
2084-5618
Pojawia się w:: Maszyny Elektryczne: zeszyty problemowe
Dostawca treści:: Biblioteka Nauki

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