Title :
Parallel power processing topology for solar PV applications
Author :
Badawi, M. ; Yilmaz, A.S. ; Sozer, Y. ; Husain, I.
Author_Institution :
ECE Dept., Univ. of Akron, Akron, OH, USA
Abstract :
A high efficiency converter topology for extracting maximum power from a photovoltaic (PV) module to charge standalone storage devices is presented in this paper. A reversed buck-boost converter enabling parallel power processing with a power switch referenced to the common return is the main core of the charging system. Small signal analysis of the proposed charging system is carried out to facilitate the design of a compensator for the maximum power point (MPP) tracking. The simulation and experimental results confirmed the validity of the model, and verified the high efficiency system operation with MPP tracking. The use of the PPP with the split loads is also presented, which would improve the size, efficiency and step down duty ratio of the converters.
Keywords :
DC-DC power convertors; maximum power point trackers; parallel processing; photovoltaic power systems; solar cell arrays; DC-DC converter; MPP tracking; PV module; PV systems; charging system; high efficiency converter topology; maximum power extraction; maximum power point tracking; parallel power processing topology; power switch; reversed buck-boost converter; small signal analysis; solar PV applications; split loads; standalone storage devices; step down duty ratio; Batteries; Capacitors; Integrated circuit modeling; Steady-state; Switches; Topology; Transfer functions;
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.2012.6342261
