8/17/2019 Essential Components of Standalone Spv Power System

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ESSENTIAL COMPONENTS OF STANDALONE SPV

POWER SYSTEM:

PV Modules - convert sunlight instantly into DC electric power.

Inverter - converts DC power into standard AC power for use in

the home, synchronizing with utility power whenever the

electrical grid is distributing electricity.

Battery - stores energy when there is an excess coming in and

distribute it back out when there is a demand. olar !" panels

continues to re-charge batteries each day to maintain battery

charge.

Charge Controller - prevents battery overcharging and prolongs

the battery life of the !" system. 

FIGURE: SCHEMAIC !IAGRAM "F A

SA#!A$"#E SPV

P"%ER S&SEM'

8/17/2019 Essential Components of Standalone Spv Power System

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GRI! C"##ECE! MU$I SRI#G( MU$ISAGE PVP"%ER E$ECR"#ICS "P"$"G&:

F)gure *'+* sho,s the ult)-str)ng )nverter

to.ology ,h)/h /ons)sts o0 t,o-stage .o,er

/onvers)on .ro/esses' In the 1rst-stage( str)ngs are

/onne/ted to )ts o,n !C-!C /onverter 0or tra/2)ng

MPP and 3oost u. the voltage' hen )n the se/ond

stage( the )nverter /onverts the !C su..ly to AC'

",)ng to se.arate MPP o0 the PV .lant str)ng(

out.ut energy )s )n/reased( 3ut losses and /ost ,)ll

3e )n/reased due to t,o .ro/ess)ng stages' h)s

to.ology )s used u. to +4 2,'