Universiti Teknologi Malaysia Institutional Repository

Design and implementation of a single input fuzzy logic controller for boost converters

Salam, Zainal and Taeed, Fazel and Md. Ayob, Shahrin (2011) Design and implementation of a single input fuzzy logic controller for boost converters. Journal Of Power Electronics, 11 (4). pp. 542-550. ISSN 1598-2092

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Abstract

This paper describes the design and hardware implementation of a Single Input Fuzzy Logic Controller (SIFLC) to regulate the output voltage of a boost power converter. The proposed controller is derived from the signed distance method, which reduces a multi-input conventional Fuzzy Logic Controller (CFLC) to a single input FLC. This allows the rule table to be approximated to a one-dimensional piecewise linear control surface. A MATLAB simulation demonstrated that the performance of a boost converter is identical when subjected to the SIFLC or a CFLC. However, the SIFLC requires nearly an order of magnitude less time to execute its algorithm. Therefore the former can replace the latter with no significant degradation in performance. To validate the feasibility of the SIFLC, a 50W boost converter prototype is built. The SIFLC algorithm is implemented using an Altera FPGA. It was found that the SIFLC with asymmetrical membership functions exhibits an excellent response to load and input reference changes.

Item Type:Article
Uncontrolled Keywords:boost converter, field programmable gate array (FPGA), fuzzy logic controller (FLC), matlab, power electronics, signed distance method, single input FLC
Subjects:T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions:Electrical Engineering
ID Code:28822
Deposited By: Liza Porijo
Deposited On:29 Nov 2012 04:55
Last Modified:29 Nov 2012 04:55

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