A research of MPPT implementation strategy based on the improved conductance increment method

Author

Cai, Xin-chen ; Fu, Bo ; Huang, Ying-wei ; Xing, Xin ; Yu, Lu ; Yi, Nan

Author_Institution

Coll. of Electr. & Electron. Eng., Hubei Univ. of Technol., Wuhan, China

fYear

2011

fDate

21-23 Oct. 2011

Firstpage

529

Lastpage

532

Abstract

This paper puts forward a control algorithm based on the improved conductance increment method according to the maximum power point tracking (MPPT) of photovoltaic cells, because the traditional one fails to strike a balance well between photovoltaic system´s efficiency and accuracy. It employs a less variable step length in the vicinity of the maximum power point (MPP), and proper duty ratio is used to swiftly adjust voltage away from MPP. Besides, a simulation model of the photovoltaic system is established through Matlab/Simulink, and the results show that the strategy is both responsive and stable.

Keywords

electric admittance; maximum power point trackers; photovoltaic cells; photovoltaic power systems; MPPT implementation strategy; Matlab; Simulink; conductance increment method; control algorithm; duty ratio; maximum power point tracking; photovoltaic cells; photovoltaic system; variable step length; Algorithm design and analysis; Fuzzy control; Photovoltaic cells; Photovoltaic systems; Simulation; Temperature; MPPT; improved conductance increment method; photovoltaic;

fLanguage

English

Publisher

ieee

Conference_Titel

Image Analysis and Signal Processing (IASP), 2011 International Conference on

Conference_Location

Hubei

Print_ISBN

978-1-61284-879-2

Type

conf

DOI

10.1109/IASP.2011.6109099

Filename

6109099