Title :
Power flow control and optimization of a three-port converter for photovoltaic-storage hybrid system
Author :
Wen Cai ; Bangyin Liu ; Shanxu Duan ; Ling Jiang
Abstract :
This paper presents a power flow control method of a three-port DC-DC converter suitable of photovoltaic-store hybrid system. The power flow control is an important factor to keep the hybrid system steady. By the proposed control method, the three-port DC-DC converter is able to restrain the power randomness of photovoltaic and load, which is significant to improve the operating efficiency and optimize the stability of photovoltaic-storage hybrid system. The asymmetrical dual half-bridge integrated converter which connects photovoltaic modules and storage cells is introduced and analyzed. Based on that, the steady performance is clarified and the modified power control method is considered as well. Experimental results on the laboratory prototype verify the validity of the proposed method.
Keywords :
DC-DC power convertors; building integrated photovoltaics; hybrid power systems; load flow control; optimisation; power control; stability; DC-DC power converter; asymmetrical dual half-bridge integrated converter; optimization; photovoltaic module; photovoltaic store hybrid system; power flow control method; power randomness; stability; storage cells; Capacitors; Clamps; Equivalent circuits; Inverters; Photovoltaic systems; Topology;
Conference_Titel :
Energy Conversion Congress and Exposition (ECCE), 2012 IEEE
Conference_Location :
Raleigh, NC
Print_ISBN :
978-1-4673-0802-1
Electronic_ISBN :
978-1-4673-0801-4
DOI :
10.1109/ECCE.2012.6342263
