8/11/15INDUCTOR CURRENT BASED MPPT AIDED THREE LEVEL BOOST CONVERTER FED MLI FOR PV APPLICATIONSPROJECT WORK DONE BYB.SAI PRANAHITA (161131!3"#P$ SCHOLAR (PED"#DEPT. OF EEE#SRM UNIVERSITY.UNDER THE $UIDANCEM%.R.SRIDHARASSISTANT PROFESSORDEPT. OF EEE# SRM UNIVERSITY8/11/15OUTLINE OF THE PRESENTATION1.PROBLEM FORMULATION!.OBJECTIVES3.BLOCK DIA$RAM&.THREE LEVEL BOOST CONVERTER5.INDUCTOR CURRENT BASED MPPT6.SEVEN LEVEL REDUCED TOPOLO$Y MLI '.SIMULATION(IMPLEMENTATION AND RESULTS8.HARDWARE( IMPLEMENTATION AND RESULTS).RESULTS AND DISCUSSION1. PUBLICATIONS11. REFERENCES2 PHASE 2 - FINAL REVIEWTherenewableenergysourceslikephotovoltaicarraysandfuelcellsproduceoutputvoltagesatlowerleveland therefore usage ofsuitable DC-DC converter is indispensable !a"i#u# $ower $oint Tracking %!$$T& control #ethod has to be e#ployed to e"tract !a"i#u# $ower %!$& in $' (rray(ll#undane!$$Tcontrolsche#eswillhavetwosensorstoeffectivelyincorporatepowerenhance#ent process and the real ti#e i#ple#entation of !$$T syste# is still a challenging task %)ung Chi-Chen et al* 2+1,&The choice of DC -DC converters and the level of boost converter re#ain always trickyas it should be co#patible with the load )ence a rationalchoiceofsuitable converter is always neededThree-level boost converter* the low level voltage is stepped up to give a higher value of voltage to #ake it co#patible to the voltage re.uire#ent of the load% /0u* etal* 2+11&1ince power conditioners are inevitable part of $' power syste# * a near sinusoidal voltage is desired always before it is being fed to (C loads!ulti level 2nverter contributesit to a great e"tent and again the choice of no of switches and the nu#ber of level reflects the co#ple"ity of i#ple#entation %3a#i (* et al* 2+11&8/11/151. PROBLEM FORMULATION 4PHASE 2 - FINAL REVIEW8/11/15!. OBJECTIVES,To design a T)566 76'67 /881T C83'65T65 to integrate with any renewable energy source for high gain dc-dc applicationsTo design a !97T2-76'67 23'65T65 with reduced nu#ber of switches for dc-ac applicationsTo e#ploy an 23D9CT85 C95563T /(16D !$$T with reduced nu#ber of sensors to facilitate its hardware i#ple#entationTo perfor# si#ulation and validate the results in )(5D0(56 63'2583!63TPHASE 2 - FINAL REVIEW8/11/153.BLOCK DIA$RAM5SOLAR PANELIrradiation(G)Temperature(T)THREE LEVEL BOOST CONVERTERMULTI-LEVELINVERTERINDUCTOR CURRENT BASED MPPTLOADIPHASE 2 - FINAL REVIEW&. THREE LEVEL BOOST CONVERTER8/11/15 6+-VDCThethreelevelboostconvertersco#binesthe basic boost converter and the switched capacitor function to provide an output of three capacitors in series with the sa#e voltage level The #ain advantage of this converter isi& transfor#er less high conversion ratio* ii& single switched based designiii& continuous input current and #odularityPHASE 2 - FINAL REVIEW8/11/15 75. INDUCTOR CURRENT BASED MPPTTHUS, IT IS SUFFICIENT TO SENSE THE INDUCTOR CURRENT AONEPHASE 2 - FINAL REVIEWPV PV PV DC DCP V I V I = = %1 &DC LCurrent I I = %1 &PV dc LP V I = %1 &PVLdPIdV = FLOW CHART8/11/15 PHASE 2 - FINAL REVIEW 88/11/15 95. SEVEN LEVEL MULTI LEVEL INVERTERThis topology is a si#plified C)/ inverter sy##etric topology3u#ber of 7evel %#&: 2n;1

3u#ber of !ain 1witches%n switch&: %%#-1&/2& ; , PHASE 2 - FINAL REVIEW8/11/15 10SWITCHIN$ TABLEPHASE 2 - FINAL REVIEWMODULATION TECHNI*UEAPOD TECHNI*UE F+% , ' -./.- 01/.%2.%# 3(146 5,%%0.% 6,/.7 ,%. 87.9 T:. 5,%%0.% 6,/.7 ,%. ;:,7. 907;+7.9 18 9.?%.. ,-2.%1,20/.->'. SIMULATION IMPLEMENTATION AND RESULTS8/11/15 PHASE 2 - FINAL REVIEW 118/11/15 12PARAMETER SPECIFICATIONSPV PANEL RATIN$S BOOST CONVERTER SPECIFICATIONSPARAMETERS VALUES2nductor %7& Capacitor%C2& 5=>?D +++2PARAMETERS VALUES8pen Circuit'oltage %'oc& 45,'1hort Circuit Current%2sc& @ 5+1/.%70+1 7>72.37*I in $roc 6nergy Convers Congr 6"po %6CC6&* 2+11* pp 5