Loading...
Implementation of a low-cost single-phase grid-connected photovoltaic system with active power filtering mechanism
Author(s)
Chaithanakulwat, Arckarakit
Date Issued
January 1, 2017
Type
Article
Abstract
This research is concerned with the implementation of a low-cost single-phase grid connected PV system including active power filtering functionality. The system is able to transfer surplus power to the grid, to compensate both reactive power and harmonics for nonlinear loads resulting in nearly unity power factor and nearly sinusoidal grid current. The system is controlled by a low cost dSPIC30F4011 microcontroller. Rectification and inversion mode operation is described. Software and hardware design of the system is given. The merit of the proposed system is simplicity especially for grid synchronization using zero crossing in conjunction with a sinusoidal look-up table. The process of reference current generation is fully described and demonstrated by experimental waveforms. Simulation and experimental results are compared in order to validate the proposed technique under various conditions such as low and high solar irradiation.
Citation
International Review of Electrical Engineering, 12(2), 175-182, 2017