Title :
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
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;
Conference_Titel :
Electronics, Communications and Control (ICECC), 2011 International Conference on
Conference_Location :
Zhejiang
Print_ISBN :
978-1-4577-0320-1
DOI :
10.1109/ICECC.2011.6067817
