Design the control for a photo-voltaic system with sinusoidal output voltage

Quynh Nga Duong, Thi Hai Yen Tran, Quynh Nhat Duong

The Photo-Voltaic system, solar power, The grid-connected Photo-Voltaic system

The research of Photo-voltaic system is very important in order to completely exploit the unlimited natural resource while traditional resources are gradually decreasing. The Photo-voltaic system connected to the electrical grid is a flexible and economical solution at the moment. However, it is not easy to control the grid-connected Photo-voltaic system. To connect the Photo-voltaic system to the national electricity network, the output voltage of the photo-voltaic system must be synchronous with the voltage current of the electrical grid. So it is essential to make the Photo-voltaic system have sinusoidal output voltage with the frequency of 50Hz. This is the very first step to design a control for the grid-connected Photo-voltaic system.

The paper gives a solution for controlling the Photo-voltaic system with sinusoidal output voltage.