Energy conversion in small water plants with variable speed PM generator
Autor
Sobczyk, Tadeusz
Mazgaj, Witold
Szular, Zbigniew
Węgiel, Tomasz
Opublikowane w
Archives of Electrical Engineering
Numeracja
Vol. 60 (2)
Strony
159-168
Data wydania
2011
Język
angielski
ISSN
1427-4221
eISSN
2300-2506
DOI
10.2478/v10171-011-0015-6
Słowa kluczowe
permanent magnet generator, PWM rectifier, small hydro power
Abstrakt
The Small Hydro Power Plants allow to increase the energy amount from re-newable sources, especially from small rivers in mountainous areas. This paper presents a new concept of a energy conversion system for application in a Small Hydropower Plant (SHP) which is based on a permanent magnet generator (PM generator) with a pro-peller turbine integrated with the generator rotor. The PM generator can work at a vari-able speed and therefore energy produced by the PM generator has to be converted by means of a power electronic unit to fit to the three-phase power grid parameters. For this concept, dimensions and parameters of the PM generator were specially designed on ac-count of integration with water turbine. The paper precisely describes elements of energy conversion system and also presents the results of numerical tests for chosen working conditions. An original algorithm of control strategy for power electronic unit was used to adjust generated energy to the required parameters of the three-phase grid.
