Title :
Dual Active Bridge for Energy Storage System in Small Wind Turbine
Author :
Rolak, Michal ; Malinowski, Mariusz
Author_Institution :
Inst. of Control & Ind. Electron., Warsaw Univ. of Technol., Warsaw, Poland
Abstract :
This paper presents a solution of Energy Storage System (ESS) for Small Wind Turbine (SWT). Two different topologies of DC/DC converters for ESS are described. Chosen Dual Active Bridge (DAB) topology is verified by simulations. It allows to deal with difference between voltage levels of dc-link and energy storage (ES) and additionally ensures galvanic isolation. Charging and discharging strategies of energy storage are described and simulated. A superior control circuit with assured protection of energy storage system, which consist of four parallel PI controllers is presented for bidirectional power transfer.
Keywords :
DC-DC power convertors; PI control; bridge circuits; electric current control; supercapacitors; wind turbines; DC link; DC-DC converter; bidirectional power transfer; control circuit; dual active bridge; energy storage system protection; galvanic isolation; parallel PI controller; small wind turbine; Bridge circuits; Energy storage; Inductors; Topology; Voltage control; Wind turbines; Windings; DC/DC converter; bidirectional power flow; dual active bridge; energy storage system; renewable energy; small wind turbine;
Conference_Titel :
AFRICON, 2011
Conference_Location :
Livingstone
Print_ISBN :
978-1-61284-992-8
DOI :
10.1109/AFRCON.2011.6072137
