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DSP-based single input PI-Fuzzy controller for inverter system

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3 Author(s)
Ayob, S.M. ; Dept. of Energy Conversion, Univ. Teknol. Malaysia, Skudai ; Azli, N.A. ; Salam, Z.

This paper presents a single input PI-fuzzy controller (SIPI-FLC) for inverter system. The SIPI-FLC is based on the 'signed-distance' method which is capable of reducing multi-input fuzzy into a single input fuzzy system without degradation in performance. The SIPI-FLC exhibits a simpler structure, requires less tuning and has much fewer number of rules. It inherits the performance and stability of a linear PI controller for small-signal disturbances but has an improved performance when subjected to large-signal disturbances. To verify the viability of the proposed technique, a prototype inverter is constructed and the control algorithm is implemented. The results are then compared with the conventional PI-FLC (CPI-FLC).

Published in:

Power Electronics Specialists Conference, 2008. PESC 2008. IEEE

Date of Conference:

15-19 June 2008