Call For Paper Volume:4 Issue:8 Aug'2017 |

AN ADAPTIVE EXTREMUM SEEKING CONTROL FOR REAL TIME OPTIMIZATION IN PHOTOVOLTAIC SYSTEM

Publication Date : 31/01/2015



Author(s) :

N.Nivetha , K.Saravanakumar.


Volume/Issue :
Volume 2
,
Issue 1
(01 - 2015)



Abstract :

Extremum seeking control approach is a theory building a feed back system in such a way that oscillation around the MPPT will boost the PV System efficiency .An alternative ESC approach is to introduce a small amount of perturbation into the control system. Maximum Power Point Tracker (MPPT) using extremum seeking control algorithm with emphasis in solar photovoltaic (PV) system. The ESC is better because of its low cost ,high efficiency and good power factor . Ripple Correlation Control(RCC) is used in first stage high pass filter along with the relational operator to develop the system .The reason for choose RCC is due to its high voltage gain and a low input current ripple which minimizes the oscillation at the module operation point .A major advantage of ESC is that it is capable of improving the system performance .The variable phase MPPT power ripple feed back signal developed by sensing and multiplying together PV array .The entire system is simulated using Matlab simulink environment .The system is expected to be operated with high efficiency and low cost long life time .


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AN ADAPTIVE EXTREMUM SEEKING CONTROL FOR REAL TIME OPTIMIZATION IN PHOTOVOLTAIC SYSTEM

January 30, 2015