Abstract
This paper presents an interval type-2 fuzzy logic (IT2FL) controlled single-phase enhanced power quality-based photovoltaic distributed generation (PVDG) system. The objective of this paper is to develop a PV inverter with the features of real power injection and power quality enhancement (PQE) capability such as reactive power compensation and grid current harmonics reduction at the point of common coupling (PCC). To overcome the problems of conventional controllers requiring intricate mathematical model, an IT2FL controller (IT2FLC) is proposed for the dc-link voltage control. A prototype model of the proposed system is developed in the laboratory and is tested with the help of dSPACE DS1104 platform. Finally, the performance of IT2FLC-based PVDG system is compared with a conventional PI-based PVDG system on the basis of both simulation and experimental results.
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