Title :
Advanced Incremental Conductance MPPT Algorithm with a Variable Step Size
Author :
Lee, Jae Ho ; Bae, Hyunsu ; Cho, Bo Hyung
Author_Institution :
Sch. of Electr. Eng., Seoul Nat. Univ.
fDate :
Aug. 30 2006-Sept. 1 2006
Abstract :
This paper proposes an advanced incremental conductance MPPT algorithm with a variable step size for a solar array regulator (SAR) system. This approach adjusts automatically a step size to the solar array operating point, thus improving the MPPT (maximum peak power tracking) speed and accuracy compared with the conventional method with a fixed step size. For the analysis of stability of the proposed algorithm near the maximum power point, the small signal modeling is carried out. Also, it is verified by experiment using a 180 W parallel connected prototype hardware
Keywords :
power convertors; solar cell arrays; tracking; 180 W; SAR; incremental conductance MPPT algorithm; maximum peak power tracking; small signal modeling; solar array regulator system; stability analysis; variable step size; Algorithm design and analysis; Computer science; Control systems; Hardware; Low earth orbit satellites; Prototypes; Regulators; Signal analysis; Stability analysis; Voltage;
Conference_Titel :
Power Electronics and Motion Control Conference, 2006. EPE-PEMC 2006. 12th International
Conference_Location :
Portoroz
Print_ISBN :
1-4244-0121-6
DOI :
10.1109/EPEPEMC.2006.4778466
