Emulation of PV systems by using Scripta mode of operation

U ovom radu opisani su svi podsustavi dostupnog fotonaponskog emulatora. Posebno je fokusirano na skripta naĉin rada programabilnih istosmjernih izvora, pomoću kojeg je omogućena emulacija FN sustava u cijelom proizvodnom periodu. Na temelju baze podataka preuzete s izmjenjivaĉa FN elektrane ETFOS1 za odabran djelomiĉno sunĉan dan obavljen je proces emulacije za dva naĉina formiranja ulaznih podataka. Na samom poĉetku izvoĊenja emulacije nailazi se na dodatne zahtjeve FN emulatora, koji se modifikacijom koda skripte uspješno rješavaju. Za isti dan ponovljen je proces emulacije FN sustava, gdje je promjenom trajanja generiranja karakteristika istražen optimalan naĉin emuliranja podataka. Na samom kraju proraĉunate su elektriĉne energije dobivene emulacijom te su vrijednosti usporeĊene sa vrijednošću stvarne proizvedene elektriĉne energije elektrane ETFOS1.In this paper are described all subsystems of available photovoltaic emulator. „Script“ operation mode of programmable DC power supplies is particularly focused, by which is enabled emulation of photovoltaic system in the whole production period. Based on the database given from the inverter of PV power plant ETFOS1, the process of emulation is performed for chosen partly sunny day in two database formation. At the beginning of PV emulation process are encountered additional requirements of PV emulator which are successfuly solved by script code modification. For the same day the process of emulation is repeated, where is investigated an optimal way for performing emulation by changing command duration. At the very end are calculated electrical energies obtained by emulation, and their values are compared with values of actual produced energy of PV power plan