A fuzzy-logic-controlled single-stage converter for PV-poweredlighting system applications
Tsai-Fu Wu
Chien-Hsuan Chang
Yu-Hai Chen
Dept. of Electr. Eng., Nat. Chung Cheng Univ., Chia-Yi;
This paper appears in: Industrial Electronics, IEEE Transactions on
Publication Date: Apr 2000
Volume: 47,
Issue: 2
On page(s): 287-296
ISSN: 0278-0046
References Cited: 16
CODEN: ITIED6
INSPEC Accession Number: 6573367
Digital Object Identifier: 10.1109/41.836344
Current Version Published: 2002-08-06
Abstract
This paper presents a fuzzy-logic-controlled single-stage power
converter (SSC) for photovoltaic (PV)-powered lighting system
applications. The SSC is the integration of a bidirectional buck-boost
charger/discharger and a class-D series resonant parallel loaded
inverter. The designed fuzzy logic controller (FLC) can control both the
charging and discharging current, and can improve its dynamic and
steady-state performance. Furthermore, a maximum power point tracker
(MPPT) based on a perturb-and-observe method is also realized to
effectively draw power from PV arrays. Both the FLC and the MPPT are
implemented on a single-chip microprocessor. Simulated and experimental
results obtained from the proposed circuit with an FLC have verified the
adaptivity, robustness and feasibility
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