IJMTES – DESIGN OF FUZZY BASED MAXIMUM POWER POINT TRACKING FOR PHOTOVOLTAIC APPLICATIONS

Journal Title : International Journal of Modern Trends in Engineering and Science

Author’s Name : Anjana Asok

Volume 02 Issue 11  Year 2015

ISSN no: 2348-3121

Page no: 21-25

Abstract The   need  for  a  renewable  energy   source   that will  not   harm   the   environment  has   become very crucial nowadays  as energy  demand  around the  world  is increasing. Using  photovoltaic  (PV)  cells is one  way  to  meet  this  need, converting   sunlight   directly   into  electricity   without   moving parts   and  no  harmful pollution,  by  means  of  Photo-Voltaic effect. Photovoltaic  effect is a process  in which two dissimilar materials  in close contact  produce  an  electrical  voltage  when struck  by light or other  radiant energy. Today, solar-generated electricity  serves  people  living  in  the  most  isolated  spots  on earth   as  well  as  in  the  center   of  metropolitan  cities.  First used  in  the  space  program,  photovoltaic (PV)  systems  are now  used  in  utility  grid  systems,  telecommunications, land- based aids to navigation and more. This technology is still expensive when compared to other sources of power so it is important to optimize the efficiency of PV panels. This can be a challenge because as irradiation and temperature changes the voltage and current in the circuit changes.  Maximum  power point  tracking  (MPPT)  is a technique  that  is used  to get the maximum  possible power from photovoltaic  devices regardless of  weather   conditions.  Different algorithms   are existing for MPPT.  In this paper, a Fuzzy based Maximum power point tracking algorithm is simulated.  Fuzzy Based MPPT algorithm possess advantages such as improved time response, increased tracking speed and sudden response to unforeseen changes of atmospheric condition.

Keywords— Photo-voltaic (PV) Module; Fuzzy Logic; Maximum power point Tracking (MPPT) Algorithm; Boost Converter

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