“New multifunctional push-pull converter operating with …“New multifunctional push-pull converter operating with MPPT and integrated energy storage system for PV micro-inverter

Luís A. M. Barros, V. Monteiro, B. Exposto, A. A. N. Meléndez, J. L. Afonso and J. G. Pinto

“New multifunctional push-pull converter operating with MPPT and integrated energy

storage system for PV micro-inverter applications”

IEEE IECON Industrial Electronics Conference, pp.7807-7812, Beijing, China, Oct. 2017.

http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=8217368&isnumber=8216002

ISBN: 978-1-5386-1127-2

DOI: 10.1109/IECON.2017.8217368

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Abstract!"#$%& '(')*& '*)%)+,%& (& +-.)/& 01/,$21+3,$-+(/&

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3-+.)*,)*& *)C1$*)%& -+/-& %>$,3#$+=&6).$3)%@& D,& 1%)%& (& %')3$2$3&

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,*(3F)*5&-',$0$G$+=&,#)&)+)*=)*&3-+.)*,)*&-')*(,)%& $+&3--*6$+(,$-+&

>$,#&,#)&AB4AB&3-+.)*,)*5&$+I)3,$+=&(//&(.($/(;/)&)+)*=$ *-5$ /@$.77'),.()-+0C$

L. A. M. Barros, V. Monteiro, B. Exposto, A. A. N. Meléndez, J. L. Afonso and J. G. Pinto, "New multifunctional push-pull converter

operating with MPPT and integrated energy storage system for PV micro-inverter applications," IECON 2017 - 43rd Annual Conference

of the IEEE Industrial Electronics Society, Beijing, 2017, pp. 7807-7812. ISBN: 978-1-5386-1127-2 doi: 10.1109/ECON.2017.8217368

;;C! /O6/6>C$b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

B. Principle of Operation

;+$-5:"5$(-$&+:"50(.+:$(1"$75)+,)7'"$-*$-7"5.()-+$75"0"+(":$)+$_)8C$cF$)($#)''$U"$,-+0):"5":$(1.($.''$,.7.,)()4"$"'"?"+(0$\C1F$C2$.+:$ C3]$ .5"$ )+)().''=$ *&''=$ ,1.58":C$ 91&0F$ .($ ()?"$ t0F$ (1"$%6>_$.+:$(1"$,.7.,)(-5$C3F$(1.($#)''$#-5a$.0$ .$ '-#27.00$ *)'("5F$ ?.)+(.)+)+8$ (1"$ D>$ ,1.58)+8$ ,&55"+($.'?-0($,-+0(.+(C$A0$)($,.+$U"$0""+F$(1"$&0"$-*$(1"0"$(#-$?-:"0F$)+$ .$ 0"^&"+().'$ ?.++"5F$ #)''$ )?7-0"$ (1"$ 75)?.5=$ 0):"$ -*$ (1"$7&0127&''$ (-$ U"1.4"$ .0$ .$ ,-+4"+()-+.'$ +-+2)0-'.(":$ R32R3$0("72&7F$)+("5*.,)+8$(1"$/@$?-:&'"0$#)(1$(1"$D>C$

91"$ *-''-#)+8$ (#-$ -7"5.()-+$ ?-:"0$ .5"$ 5"'.(":$ #)(1$ (1"$"+"58=$0"+($(-$(1"$(5.+0*-5?"5$0",-+:.5=$#)+:)+8F$LsC$R&5)+8$(1"$(1)5:$0(.8"$-*$-7"5.()-+F$)+$t2F$-+'=$(1"$%6>___

,&55"+(0$.+:o-5$4-'(.8"0F$#1),1$#)''$,-+0"^&"+('=$.**",($(1"$(-(.'$7-#"5$ 8"+"5.(":$U=$ (1"$/@$?-:&'"C$91"5"*-5"F$?&0($ U"$ &0":$%//9$,-+(5-'$.'8-5)(1?0F$#)(1$:)**"5"+($'"4"'0$-*$,-?7'"J)(=F$.0$75"0"+(":$)+$ZEg[PZNj[C$;+$(1"$0,-7"$-*$(1)0$7.7"5$)0$&0":$(1"$)+,5"?"+(.'$ ,-+:&,(.+,"$%//9$.'8-5)(1?F$#1),1$ )0$ U.0":$-+$(1"$,1.5.,("5)0(),$,&54"$-*$(1"$/@$?-:&'"$(-$*)+:$(1"$%//$ZEg[C$;+$*.,(F$#1"+$(1"$0=0("?$)0$-7"5.()+8$.($(1"$%//F$)($(1"$:"5)4.()4"$-*$(1"$-&(7&($7-#"5$-*$(1"$?-:&'"F$)+$5"'.()-+$(-$(1"$4-'(.8"F$)0$M"5-C$$

B. BESS Charging Control Algorithm

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l0$ 4-'(.8"$5".,1"0$(1"$+-?)+.'$4.'&"F$7.00)+8$(-$.$,-+0(.+($4-'(.8"$&+()'$(1"$,&55"+($5".,1"0$.$4.'&"$,'-0"$(-$M"5-C$

C. DC-link Voltage and Current Reference

6+"$-*$(1"$?.)+$*".(&5"0$-*$.$,-+4"+()-+.'$?),5-2)+4"5("5$)0$(1"$ )+W",()-+$ -*$ "+"58=$ )+(-$ (1"$ /HC$ _-5$ (1.(F$ .$ ,-+0(.+($?-+)(-5)+8$ .+:$ R32')+a$ 5"8&'.()-+$ )0$ .$ ,5&,).'$ .07",($ (-$8&.5.+(""$ )(0$ ,-55",($ -7"5.()-+C$ 91"$R32')+a$ 4-'(.8"$?&0($ U"$1)81"5$(1.+$(1"$7".a24.'&"$-*$(1"$/H$4-'(.8"C$

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$ i*=G vSPLL VSpPLL \N]

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D. Current Control for the DC-AC Power Converter

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A. Validation of the Proposed Power Converter

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