Fuzzy Logic Controller for MPPT SEPIC converter and PV single-phase inverter

Author

El Khateb, Ahmad ; Rahim, Nasrudin Abdul ; Selvaraj, Jeyraj

fYear

2011

fDate

25-28 Sept. 2011

Firstpage

182

Lastpage

187

Abstract

This paper introduces an implementation of Fuzzy Logic Controller (FLC) for the single-ended primary-inductor converter (SEPIC) that control the maximum power point tracking (MPPT) signal together with the cascaded single-phase inverter. The extracting of the maximum power through using the SEPIC fuzzy controller is considered the main improvement here. Fuzzy-controlling in duty cycle increases/decreases the voltage level for the SEPIC according to the maximum power. SEPIC MPPT ensures optimal utilization for the PV array. The controller further proves its accuracy in variable-load conditions. TMS320F28335 DSP has been used to implement the controlled pulse width modulation (PWM). The controlled system has been verified by simulation and implemented in a prototype. Then, experimental results have been compared with those for conventional single-phase inverter.

Keywords

DC-DC power convertors; PWM invertors; digital signal processing chips; fuzzy control; inductors; maximum power point trackers; FLC; MPPT SEPIC converter; PV array optimal utilization; PWM; TMS320F28335 DSP; cascaded PV single-phase inverter; fuzzy logic controller; maximum power point tracking; pulse width modulation; single-ended primary-inductor converter; variable-load condition; Arrays; Fuzzy logic; Industrial electronics; Integrated circuit modeling; Inverters; Pulse width modulation; Voltage control; Fuzzy Logic Controller (FLC); Maximum Power Point Tracker (MPPT); Single-Ended Primary Inductor Converter (SEPIC); single-phase inverter;

fLanguage

English

Publisher

ieee

Conference_Titel

Industrial Electronics and Applications (ISIEA), 2011 IEEE Symposium on

Conference_Location

Langkawi

Print_ISBN

978-1-4577-1418-4

Type

conf

DOI

10.1109/ISIEA.2011.6108693

Filename

6108693