Integral Backstepping Control for Maximum Power Point Tracking and Unity Power Factor of a Three Phase Grid Connected Photovoltaic System

Hicham Bahri (University Hassan I, Settat, Morocco)
Mohamed Aboulfatah (University Hassan I, Settat, Morocco)
M’hammed Guisser (University Hassan I, Settat, Morocco)
Elhassane Abdelmounim (University Hassan I, Settat, Morocco)
Mohammed El Malah (University Hassan I, Settat, Morocco)

International Journal of Electrical and Computer Engineering
Vol 7, No 4: August 2017

This paper presents a robust control strategy for a grid connected photovoltaic system with a boost converter by using an integral Backstepping method based on a nonlinear state model, which guarantees the Lyapunov stability of the global system. The system has tracked precisely the maximum power point, with a very fast response and the unit power factor has been observed under different atmospheric conditions. Moreover, the best advantage of the controller is that it’s a good corrector of the grid perturbation and system parameter disturbance. The simulation result has demonstrated the performance of this strategy.