Photovoltaic non-linear medel solution and improved P&O method for MPPT

Author

Zhang Yang ; Lin Heyun ; Yan Jianhu ; Feng Yi ; Guo Yujing ; Lu Xiaoquan

Author_Institution

Sch. of Electr. Eng., Southeast Univ., Nanjing, China

fYear

2013

fDate

9-11 Sept. 2013

Firstpage

1

Lastpage

4

Abstract

For maintaining photovoltaic (PV) generation system at maximum power point, it is necessary to calculate the parameters of PV cell model precisely. The modified expressions for the single diode equivalent circuit parameters of PV cell are derived based on the four basic electric parameters provided by manufacturer. An improved perturbation and observation (P&O) method is proposed to achieve the maximum power point tracking (MPPT). A simulation system based on a MSX-60 PV panel is constructed by Matlab/simulink to predict the output characteristics of PV panel, which are compared with those of the traditional P&O and the incremental conductance (INC) methods. The simulation results indicate that the modified parameter expressions of PV cell are more precise and the PV panel controlled by adopting the improved P&O method has higher tracking efficiency.

Keywords

equivalent circuits; maximum power point trackers; perturbation techniques; photovoltaic power systems; solar cells; MPPT; MSX-60 PV panel; Matlab/Simulink; PV cell model; PV generation system; improved P&O method; incremental conductance method; maximum power point tracking; perturbation and observation method; photovoltaic generation system; photovoltaic nonlinear model solution; single diode equivalent circuit parameter; Photovoltaic cell; maximum power point tracking; perturbation and observation;

fLanguage

English

Publisher

iet

Conference_Titel

Renewable Power Generation Conference (RPG 2013), 2nd IET

Conference_Location

Beijing

Electronic_ISBN

978-1-84919-758-8

Type

conf

DOI

10.1049/cp.2013.1877

Filename

6718788