Title :
Integration of alternative sources of energy as current sources
Author :
Lima, L.P. ; Farret, F.A. ; Trapp, J.G. ; Ferrigolo, F.Z. ; Ramos, D.B. ; Fernandes, F.T.
Abstract :
This work proposes an integration of alternative energy sources having the different generating modules connected as current sources. These sources were configured to inject current into a common DC bus. This feature avoids current circulation among sources due to the voltage differences, reducing the stress in the individual generators. A battery bank is a system part, used as an energy accumulator for periods when there is primary energy depletion. The bus voltage is controlled by modulation of a secondary load in parallel with the main load. A DC-DC Boost converter connects each primary source to a common bus, except for the storage system that uses a DC-DC Buck-Boost converter. Finally, it is presented a mathematical analysis through simulated results to show the sources behavior and overall performance when turned into current sources.
Keywords :
DC-DC power convertors; distributed power generation; mathematical analysis; secondary cells; voltage control; DC-DC boost converter; alternative energy sources; battery bank; bus voltage; common DC bus; current sources; distributed generation; energy accumulator; mathematical analysis; primary energy depletion; Generators; Inductors; Load modeling; Mathematical model; Transient analysis; Voltage control; Wind power generation; Current sources; alternative sources of energy; distributed generation; electric hybrid systems;
Conference_Titel :
Power Electronics Conference (COBEP), 2011 Brazilian
Conference_Location :
Praiamar
Print_ISBN :
978-1-4577-1644-7
Electronic_ISBN :
2175-8603
DOI :
10.1109/COBEP.2011.6085279