Energies 2014, 7(4), 2177-2193; doi:10.3390/en7042177
Article

An Asymmetrical Fuzzy-Logic-Control-Based MPPT Algorithm for Photovoltaic Systems

1email, 1email, 1,* email and 2email
Received: 14 February 2014; in revised form: 17 March 2014 / Accepted: 20 March 2014 / Published: 1 April 2014
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract: In this paper, a fuzzy-logic-control (FLC) based maximum power point tracking (MPPT) algorithm for photovoltaic (PV) systems is proposed. The power variation and output voltage variation are chosen as inputs of the proposed FLC, which simplifies the calculation. Compared with the conventional perturb and observe (P&O) method, the proposed FLC-based MPPT can simultaneously improve the dynamic and steady state performance of the PV system. To further improve the performance of the proposed method, an asymmetrical membership function (MF) concept is also proposed. Two design procedures are proposed to determine the universe of discourse (UOD) of the input MF. Comparing with the proposed symmetrical FLC-based MPPT method, the transient time and the MPPT tracking accuracy are further improved by 42.8% and 0.06%, respectively.
Keywords: fuzzy logic control; maximum power point tracking; photovoltaic
PDF Full-text Download PDF Full-Text [1349 KB, uploaded 1 April 2014 10:35 CEST]

Export to BibTeX |
EndNote


MDPI and ACS Style

Liu, C.-L.; Chen, J.-H.; Liu, Y.-H.; Yang, Z.-Z. An Asymmetrical Fuzzy-Logic-Control-Based MPPT Algorithm for Photovoltaic Systems. Energies 2014, 7, 2177-2193.

AMA Style

Liu C-L, Chen J-H, Liu Y-H, Yang Z-Z. An Asymmetrical Fuzzy-Logic-Control-Based MPPT Algorithm for Photovoltaic Systems. Energies. 2014; 7(4):2177-2193.

Chicago/Turabian Style

Liu, Chun-Liang; Chen, Jing-Hsiao; Liu, Yi-Hua; Yang, Zong-Zhen. 2014. "An Asymmetrical Fuzzy-Logic-Control-Based MPPT Algorithm for Photovoltaic Systems." Energies 7, no. 4: 2177-2193.

Energies EISSN 1996-1073 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert