Extremum Seeking and P&O Control Strategies for Achieving the Maximum Power for a PV Array

The aim of this paper is to study and to compare between two control strategies for tracking the Maximum Power Point (MPP) for a photovoltaic (PV). The PV array is connected to the load through a boost converter. In fact, the Maximum Power Point Tracking (MPPT) is achieved by using two different methods for searching the Maximum Power point (MPP). These strategies methods are Perturb and observe (P&O) and Extremum Seeking Control (ESC). The aim goal of these strategies is to predict the maximum power point. Simulation results show the effectiveness of the control strategies applied to the studied system.

[1]  Lian Lian Jiang,et al.  A hybrid maximum power point tracking for partially shaded photovoltaic systems in the tropics , 2015 .

[2]  Miroslav Krstic,et al.  Performance improvement and limitations in extremum seeking control , 2000 .

[3]  B N Alajmi,et al.  Fuzzy-Logic-Control Approach of a Modified Hill-Climbing Method for Maximum Power Point in Microgrid Standalone Photovoltaic System , 2011, IEEE Transactions on Power Electronics.

[4]  Shouming Zhong,et al.  Fractional-order sliding mode based extremum seeking control of a class of nonlinear systems , 2014, Autom..

[5]  Jin Jiang,et al.  Modeling, Prediction, and Experimental Validations of Power Peaks of PV Arrays Under Partial Shading Conditions , 2014, IEEE Transactions on Sustainable Energy.

[6]  I. Mareels,et al.  Extremum seeking from 1922 to 2010 , 2010, Proceedings of the 29th Chinese Control Conference.

[7]  Miroslav Krstic,et al.  Stability of extremum seeking feedback for general nonlinear dynamic systems , 2000, Autom..

[8]  Miroslav Krstic,et al.  Real-Time Optimization by Extremum-Seeking Control: Ariyur/Extremum Seeking , 2004 .

[9]  S Ahmed,et al.  High-Performance Adaptive Perturb and Observe MPPT Technique for Photovoltaic-Based Microgrids , 2011, IEEE Transactions on Power Electronics.

[10]  P.L. Chapman,et al.  Comparison of Photovoltaic Array Maximum Power Point Tracking Techniques , 2007, IEEE Transactions on Energy Conversion.

[11]  M. Krstić,et al.  Real-Time Optimization by Extremum-Seeking Control , 2003 .

[12]  Kashif Ishaque,et al.  The performance of perturb and observe and incremental conductance maximum power point tracking method under dynamic weather conditions , 2014 .