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PWM DC-AC Converter Regulation using a Multi-Loop Single Input Fuzzy PI Controller  

Ayob, Shahrin Md. (Dept. of Energy Conversion, Faculty of Electrical Engineering, Universiti Teknologi Malaysia)
Azli, Naziha Ahmad (Dept. of Energy Conversion, Faculty of Electrical Engineering, Universiti Teknologi Malaysia)
Salam, Zainal (Dept. of Energy Conversion, Faculty of Electrical Engineering, Universiti Teknologi Malaysia)
Publication Information
Journal of Power Electronics / v.9, no.1, 2009 , pp. 124-131 More about this Journal
Abstract
This paper presents a PWM dc-ac converter regulation using a Single Input Fuzzy PI Controller (SIFPIC). The SIFPIC is derived from the signed distanced method, which is a simplification of a conventional fuzzy controller. The simplification results in a one-dimensional rule table, that allows its control surface to be approximated by a piecewise linear relationship. The controller multi-loop structure is comprised of an outer voltage and an inner current feedback loop. To verify the performance of the SIFPIC, a low power PWM dc-ac converter prototype is constructed and the proposed control algorithm is implemented. The experimental results show that the SIFPIC performance is comparable to a conventional Fuzzy PI controller, but with a much reduced computation time.
Keywords
PWM; dc-ac converter; Fuzzy controller; Multi-loop scheme; Signed distance method;
Citations & Related Records

Times Cited By Web Of Science : 6  (Related Records In Web of Science)
Times Cited By SCOPUS : 9
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