Fuzzy regulation of DC-bus voltage for solar energy system

Author

Gwo-Ruey Yu ; Jian-Fu Chen

Author_Institution

Electr. Eng. Dept., Nat. Chung Cheng Univ., Chiayi, Taiwan

fYear

2013

fDate

4-6 July 2013

Firstpage

81

Lastpage

85

Abstract

A novel design of dc-bus voltage regulation using fuzzy logic is presented in this paper. The dc-bus voltage is regulated for a solar energy system which includes a bi-directional inverter, photovoltaic panels, a maximum power point tracker, and dc loads. In grid-connected mode, the bi-directional inverter can track the reference ac current signal. In rectification mode, the bi-directional inverter can control the power flow. A maximum power point tracker is designed by the perturbation and observation method. Furthermore, the fuzzy logic system is developed to control the dc-bus voltage for load variation. Simulation results have validated the effectiveness of this design by MATLAB/Simulink.

Keywords

fuzzy control; invertors; load flow control; maximum power point trackers; rectification; solar cells; solar power stations; voltage control; ac current signal; bidirectional inverter; dc load; dc-bus voltage regulation; fuzzy logic system; grid-connected mode; maximum power point tracker; photovoltaic panel; power flow control; rectification mode; solar energy system; Bidirectional control; Fuzzy logic; Inverters; Maximum power point trackers; Photovoltaic systems; Voltage control; bi-directional inverter; fuzzy regulation; solar energy system;

fLanguage

English

Publisher

ieee

Conference_Titel

System Science and Engineering (ICSSE), 2013 International Conference on

Conference_Location

Budapest

ISSN

2325-0909

Print_ISBN

978-1-4799-0007-7

Type

conf

DOI

10.1109/ICSSE.2013.6614637

Filename

6614637