Prąd stały a prąd przemienny

• Autorzy: Biczel P.
• Języki publikacji: PL

Abstrakty

EN

Main development of power generation technologies, due to political reasons, is going toward renewable energy resources. However, there are some economical and technical problems, connected with the power generation. The problems limit wide utilization of renewable sources. One of the proposed solutions is grouping of RES into micrgrids - small balanced autonomic power systems. Sources and loads can be linked in the microgrid using DC or AC power lines. Which solution is better? DC or AC? There are a group of issues presented in the paper, which shows the advantages of the DC microgrid and author assumes them as interesting. The main issues described in the paper are power quality, power losses, plants connection, power flow control. It can be shown that there is much easier to solve above problems in case of DC systems then in AC ones, for instance it is possible to prove that power transfer losses can be smaller in DC systems then in AC ones even in LV lines. Also it is possible to limit current distortions generated to the power system. Some disadvantages of the DC systems are also presented. From technical point of view the most important are switches and protection devices. However, the most important problem is change of the system and economical issues.

Słowa kluczowe

PL

system AC; system DC; jakość zasilania; straty mocy; kontrola przepływu mocy

EN

AC system; DC system; power quality; power losses; power flow control

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Systems : journal of transdisciplinary systems science
• Rocznik: 2008
• Tom: Vol. 13, spec. iss. 1/2
• Strony: 120--126
• Opis fizyczny: Bibliogr. 8 poz., rys.

Twórcy

autor

Biczel P.

• Politechnika Warszawska, Instytut Elektroenergetyki, 00-662 Warszawa, ul. Koszykowa 75

Bibliografia

• [1] BICZEL P., SADOWSKI A., Dystrybucja energii prądem stałym. X Międzynarodowa Konferencja Naukowo-Techniczna "Nowoczesne urządzenia zasilające w energetyce", 14-16.03.2007, Zakopane, str. 16.1-16.10
• [2] BICZEL P., SADOWSKI A., Zasilanie prądem stałym. V Lubuska Konferencja Naukowo-Techniczna „MITEL 2008" Materiały i Technologie w Elektrotechnice. Gorzów Wlkp. 9-11.04.2008.
• [3] BORIOLI E., BRENNA M., FARANDA R, SIMIOLI G., A Compańsion between the Electrical Capabilities of the Cables Used in LVAC and DC Power Lines. 11 th International Conference on Harmonics and Quality of Power. Power, ICHQP, 12-15 September 2004, Lake Placid, New York
• [4] CADLER E., NOCULAK A., Wpływ odbiorników nieliniowych na straty przesyłu energii w liniach niskiego napięcia. Przegląd Elektrotechniczny, nr 7-8/2007 str. 37.
• [5] ENGLER A., Applicability of Drops In Low Voltage Grids. International Journal of Distributed Energy-Resources. Vol. 1 No. 1 (2005), p. 3-15.
• [6] KŁOS M., Aspekty techniczne i ekonomiczne magazynowania energii elektrycznej na przykładzie elektrowni wiatrowej. Rozprawa doktorska. Politechnika Warszawska Wydział Elektryczny, Warszawa 2006.
• [7] NILSSON D., SANNINO A., Efficiency analysis of low- and mediumvoltage dc distribution systems. IEEE Power Engineering Society General Meeting, 6-10 June 2004.
• [8] PASKA J., BICZEL P., DC Voltage Microgrid in The Distributed Generation. 4th International Workshop Comatibility in Power Electronics CPE 2005. Gdańsk, Poland, 1-3.06.2005