Abstract :
A robust maximum power point tracker (MPPT) using sliding mode controller for the three-phase grid-connected photovoltaic system
has been proposed in this paper. Contrary to the previous controller, the proposed system consists of MPPT controller and current
controller for tight regulation of the current. The proposed MPPT controller generates current reference directly from the solar array
power information and the current controller uses the integral sliding mode for the tight control of current. The proposed system can
prevent the current overshoot and provide optimal design for the system components. The structure of the proposed system is simple,
and it shows robust tracking property against modeling uncertainties and parameter variations. Mathematical modeling is developed and
the experimental results verify the validity of the proposed controller.
2006 Elsevier Ltd. All rights reserved.
