Abstract

This paper presented a novel fuzzy logic controller (FLC) for three-phase voltage source grid connected inverter. The fuzzy logic controller was employed in the outer voltage loop. In order to improve the performances of current loop, the anti-windup PI controller of inner current loop was used instead of the traditional PI controller. The complete control scheme of the three-phase grid connected inverter was implemented in real time using TMS320LF2812 digital signal processor. The simulation and experiment were carried out for the proposed system. The performances of the proposed three-phase voltage source grid connected gird inverter were investigated. The results showed that the proposed system can not only enhance the robustness of the system, but also improve the steady-state precision and dynamic performance.

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