Application of Sinusoidal Pulse Width Modulation Algorithm in the Grid-Connected Photovoltaic System

In order to solve the problem of the hamonic in the Micro Power system which made up of distributed power that generate by clean energy, we use the Sinusoidal Pulse Width Modulation algorithm. [1]The single-phase photovoltaic system which described in this article is a sort of Micro Power, and it use solar power to generate energy that achieve a goal of saving energy. Sinusoidal Pulse Width Modulation algorithm method is the core algorithm of the single-phase PV systems, which use high-frequency pulse to achieve DC-AC conversion by control the inverter. In this paper, I use DSP to generate the high-frequency pulse to achieve this algorithm. [2]The result shows that the output has good characteristics of sine wave, and it has little harmonic, so the output can be fully integrated into the grid. Therefore, the Sinusoidal Pulse Width Modulation algorithm solves the problem of the harmonic.