Input voltage control of SEPIC for maximum power point tracking

Author

Kashyap, A.R. ; Ahmadi, R. ; Kimball, Jonathan W.

Author_Institution

Electr. & Comput. Eng., Missouri Univ. of Sci. & Technol., Rolla, MO, USA

fYear

2013

fDate

22-23 Feb. 2013

Firstpage

30

Lastpage

35

Abstract

The SEPIC (Single Ended Primary Inductor Converter) topology is an excellent choice for a maximum power point tracking (MPPT) converter in small solar energy systems. To achieve MPPT, the input voltage of the SEPIC, corresponding to the photovoltaic (PV) module´s output voltage, must be regulated. In this paper, a model is derived with the voltage on the input capacitor as the plant output. The model is used to design a closed-loop controller to regulate the PV module voltage to match the output of an MPPT algorithm. Simulation and experimental validation are given.

Keywords

closed loop systems; maximum power point trackers; photovoltaic power systems; power capacitors; power convertors; power inductors; solar power; voltage control; MPPT converter; SEPIC; capacitor; closed-loop controller; maximum power point tracking; photovoltaic module; single ended primary inductor converter; small solar energy systems; voltage control; Capacitors; Inductors; Integrated circuit modeling; Mathematical model; Maximum power point trackers; Signal processing algorithms; Voltage control;

fLanguage

English

Publisher

ieee

Conference_Titel

Power and Energy Conference at Illinois (PECI), 2013 IEEE

Conference_Location

Champaign, IL

Print_ISBN

978-1-4673-5601-5

Type

conf

DOI

10.1109/PECI.2013.6506030

Filename

6506030