Installation Manual

Chapter 1: Introducing the SolarEdge Power
Harvesting System
TheSolarEdgepowerharvestingsolutionisdesignedtomaximize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
SolarEdge Power Optimizer
TheSolarEdge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ConnectionUnit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ConnectionUnit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:
Chapter 1: Introducing the SolarEdge Power Harvesting System
Three Phase Inverter with synergy technology Guide MAN-01-00401-1.1
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