Optymalizacja przetwarzania energii dla małych elektrowni wodnych z generatorami pracującymi ze zmienną prędkością obrotową

• Autorzy: Borkowski D. , Węgiel T.

Warianty tytułu

EN

Energy conversion optimization in small water plants with variable speed generators

• Języki publikacji: PL

Abstrakty

EN

Electrical generators for today's Small Hydropower Plants (SHP) are designed for a constant rotation speed. Changes of energy provided by water depend on water flow, which is very unreliable for small rivers. Therefore, full efficiency can be achieved for power technology with generators working at a variable speed. This paper presents a concept of a energy conversion system optimization for application in a SHP which is based on a permanent magnet (PM) generators with a propeller turbine integrated with the generator rotors. These PM generators can work at a variable speed and therefore energy produced by the PM generators have to be converted by means of a power electronic unit to fit to the three-phase power grid parameters. The elements of such SHP are described. Due to non-linear turbine characteristics it is necessary to formulate a suitable control algorithm for the whole system of energy conversion therefore the control system principles for optimal power dividing on two exemplary hydro-sets are discussed.

Słowa kluczowe

PL

energia wodna; elektrownia wodna mała; hydrozespół; zmienna prędkość obrotowa; przetwarzanie energii

• Wydawca: Sieć Badawcza Łukasiewicz - Górnośląski Instytut Technologiczny
• Czasopismo: Maszyny Elektryczne : zeszyty problemowe
• Rocznik: 2011
• Tom: Nr 4(92)
• Strony: 121--126
• Opis fizyczny: Bibliogr. 7 poz., rys.

Twórcy

autor

Borkowski D.

autor

Węgiel T.

• Politechnika Krakowska, Wydział Inżynierii Elektrycznej i Komputerowej, Instytut Elektromechanicznych Przemian Energii, 31-155 Kraków, ul. Warszawska 24,

Bibliografia

• [1] Krzyżanowski W.: Turbiny wodne - konstrukcja i zasady regulacji, WNT, Warszawa 1971.
• [2] Merino J.M., Lopez A.: ABB Varspeed generator boosts efficiency and operating flexibility of hydropower plant, ABB Review 3/96. pp. 33-38.
• [3] Fraile-Ardanuy J., Wilhelmi J.R., Fraile-Mora J.J., Perez J.I.: Variable-Speed Hydro Generation: Operational Aspects and Control, IEEE Transactions on Energy Conversion, vol. 21, no. 2, June 2006.
• [4] Kaźmierkowski M., Krishnan R., Blaabjerg F., Irwin J.: Control In Power Electronics, ACADEMIC PRESS, 2003, ISBN: 0-12-402772-5.
• [5] Koczara W., Chlodnicki Z., Ernest E.: Theory of the adjustable speed generation systems. COMPEL: The International Journal for Computation and Mathematics in Electrical and Electronic Engineering, 27(5): 1162-1177, 2008.
• [6] Binder A., Schneider T., Permanent magnet synchronous generators for regenerative energy conversion - a survey. Proc. of 11th European Conf. on Power Electronics and Applications, Dresden 2005.
• [7] Norway Patent No 323150: Integrert vannturbin og generator uten nav, owner - TURBINOVA AS.