A method for MPPT control based on soft-switching circuit

Author

Shi, Jiying ; Wu, Yanhui ; Wang, Huailing ; Li, Chunling

Author_Institution

Sch. of Electr. Eng. & Autom., Tianjin Univ., Tianjin, China

fYear

2011

fDate

9-11 Sept. 2011

Firstpage

2429

Lastpage

2432

Abstract

In recent years, as energy and environmental problems, solar energy utilization has obtained Rapid development. This paper analysis and compares the main technical issues of the solar power system and proposed a Improved Buck-Boost Circuit based on soft-switching technology as a DC/DC converter, then designed a fuzzy logic controller of two grid-connected PV system to achieve the maximum power point tracking. On the basis of Improved Buck-Boost Circuit, built the MPPT control model based on perturbation and observation method and fuzzy control method. By Matlab/Simulink simulation to verify the feasibility of the algorithm, the results shows the characteristics and advantages of the maximum power tracking applied to fuzzy control system.

Keywords

DC-DC power convertors; control system synthesis; environmental factors; fuzzy control; maximum power point trackers; perturbation techniques; photovoltaic power systems; power generation control; switching convertors; DC-DC converter; MPPT control; Matlab-Simulink simulation; energy problem; environmental problem; fuzzy logic controller design; grid-connected PV system; improved buck-boost circuit; maximum power point tracking; observation method; perturbation method; soft-switching circuit; solar energy utilization; solar power system; Fuzzy control; Integrated circuit modeling; Photovoltaic cells; Photovoltaic systems; Switches; Switching circuits; converter; fuzzy logic controller; maximum power point tracking; soft-switching technology;

fLanguage

English

Publisher

ieee

Conference_Titel

Electronics, Communications and Control (ICECC), 2011 International Conference on

Conference_Location

Zhejiang

Print_ISBN

978-1-4577-0320-1

Type

conf

DOI

10.1109/ICECC.2011.6067817

Filename

6067817