Implementação digital de algoritmo de sincronismo aplicado ao controle de conversores estáticos

Abstract

This research presents the implementation of a PLL firmware using a dsPIC, since this DSP has predefined functions and interruptions in its internal library assisting the PLL firmware development. The implemented PLL was tested on a prototype developed on LPEE at UTFPR. The reference used in the development of this prototype was the COPEL electrical grid, this one working on a 127 V voltage and 60 Hz frequency. It has been found that the implemented control system is efficient in these conditions, maintaining accurately synchronism in the electrical grid within the limits imposed by the electric company.