A Comparison between OTC and P&O MPPT Control Methods Applied to Small Sized Wind Power Plants

Document Type: Original Article


1 Department of Electrical Engineering, Ahar Branch, Islamic Azad University, Ahar, Iran

2 Prof. of Elec. Eng., Azarbaijan Shahid Madani University, Tabriz, Iran


This paper provides a review of OTC and P&O MPPT controllers used for extracting maximum power from the wind energy systems using permanent magnet synchronous generators. Hence, the output power of wind energy system varies continually as wind speed changes, it is desirable to determine the one optimal generator speed that ensures maximum energy yield. Thus, it is important to include a controller that can track the maximum peak regardless of wind speed. After explaining the basic concepts of OTC and P&O algorithms by implementing the algorithms on MATLAB -SIMULINK platform, a comparison has been made between the performance of these two MPPT algorithms on the basis of speed responses and ability to achieve the maximum energy. The priority of OTC algorithm is validated through analyzing simulation results