Installation Guide

Chapter 1: Introducing the SolarEdge Power
Harvesting System
TheSolarEdgepowerharvestingsolutionmaximizesthepoweroutputfromanytypeofsolar
Photovoltaic(PV)installationwhilereducingtheaveragecostperwatt.Thefollowingsectionsdescribe
eachofthesystem’scomponents.
Figure 1: The SolarEdge power harvesting system components
Power Optimiser
ThepoweroptimizersareDC-DCconvertersconnectedtoPVmodulesinordertomaximizepower
harvestingbyperformingindependentMaximumPowerPointTracking(MPPT)atthemodulelevel.
Thepoweroptimizersregulatethestringvoltageataconstantlevel,regardlessofstringlengthand
environmentalconditions.
Thepoweroptimizersincludeasafetyvoltagefunctionthatautomaticallyreducestheoutputofeach
poweroptimizerto1Vdcinthefollowingcases:
l Duringfaultconditions
l Thepoweroptimizersaredisconnectedfromtheinverter
l TheinverterON/OFFswitchisturnedOFF
l ThesafetyswitchontheSafetySwitchisturnedOFF
l TheinverterACbreakeristurnedOFF
l TheRapidShutdown(PVRSS)isinitiatedbyoneofthefollowingmethods:

o
InverterACbreakeristurnedOFF,orACtotheinverterisdisconnectedbyanothermethod
(intentionallyorasresultofafault)

o
InverterON/OFFswitchisturnedOFF

o
TheSafetySwitchisturnedOFF
EachpoweroptimizeralsotransmitsmoduleperformancedataovertheDCpowerlinetotheinverter.
Twotypesofpoweroptimizersareavailable:
l ModuleAdd-onpoweroptimizer–connectedtooneormoremodules
l Smartmodules-thepoweroptimizerisembeddedintoamodule
SolarEdge Inverter
TheSolarEdgeinverterefficientlyconvertsDCpowerfromthemodulesintoACpowerthatcanbefed
intothemainACserviceofthesiteandfromtheretothegrid.Theinverteralsoreceivesthemonitoring
datafromeachpoweroptimizerandtransmitsittoacentralserver(theSolarEdgemonitoringplatform;
requiresInternetconnection).
-Single Phase Inverter with HD-Wave Technology Installation MAN-01-00541-1.0
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Chapter 1: Introducing the SolarEdge Power Harvesting System