PV COMP is device for transformation of DC voltage generated on the terminals of the solar panel to three phase AC power grid with reactive power compensation capability, specially designed for cooperation with large gensets in hybrid microgrid systems. The current not used for the active power generation from PV panels can be used for reactive power compensation, even during the night or cloudy weather.

PV COMP 350 is transformerless inverter designed for direct connection of a inverter or arbitrary number of parallel ranged inverters on the primary side of the transformer with ratio 0.35/11-33 kV.

Inverters of the PV COMP 350 family are able to operate in wide range of input voltage – voltage of photovoltaic cells within the range from 580 V to 850 V at the rated grid voltage. Design and structure of PV COMP family is made according to specific solar power plant application. Maximum power of the inverter is 150 kVA, it was chosen as an optimal power in consideration of service characteristics: modularity of the solution, maintenance, service, partial shading of PV panels, number of strings and failure of the solar power plant part.

Main features of PV COMP:



Basic technical data

  PV COMP 350 / 100 PV COMP 350 / 125 PV COMP 350 / 150
Rated AC apparent power 100 kVA 125 kVA 150 kVA
Max Active Power 100 kW 125 kW 150 kW
Max Reactive Power 100 kVAr 125 kVAr 150 kVAr
Rated output current 165 A 207 A 248 A
Rated input current UDC = 600 V 154 A 192 A 230 A
Dimensions (w x h x d) 800x1800x500 800x1800x500 800x1800x500
Weight 300 kg 300 kg 300 kg

Technical data FOTO CONTROL

Peek DC supply voltage 880 V no load
MPPT operating voltage 580 to 850 V
Output voltage 3x 350 V ±10%
Efficiency ≥ 98 %
Euro efficiency ≥ 96.5 %
Output frequency 50 Hz ± 0.5 Hz
cos φ Adjustable from 0.00 to 1.00, in both inductive and capacitive directions (default=1.0)
Total harmonic distortion of the output current (THDi) Max. 3 % at rated current (THD of the grid ≤ 1,5%)
RFI filter Inbuilt input DC filter and output AC RFI filter
Control system 32 bit. µP DSP - TI
Communication RS 485, USB, CAN
Communication module - Optional Profibus DP, Modbus RTU, Ethernet, GSM
Contactor at the output YES
Time of disconnection from the grid if the grid is defective ≤ 10 ms
Control panel - Optional Graphic, detachable, programmable
Analog inputs 4 /0 (4) – 20 mA/ / 0 (2) – 10 V/
Analog outputs 3 /0 (4) – 20 mA/ / 0 (2) – 10 V/
Relay output 3 x relay, adjustable, programmable
Protections Current overloading, overvoltage protection of DC inputs and panels , overvoltage protection on the AC side, undervoltage, overvoltage, earth connection on the AC output, cut off between output phases, overheating of the inverter
Cooling Forced air cooling by inbuilt ventilators
Absolute altitude of the permitted usage ≤ 1000 m over the sea, at higher altitude levels reduction of the power for each 100 m of altitude reduction of the inverter power for 1 %
Relative humidity of the air ≤ 95 % without corrosive and explosive gases, without water vapor and condensates
Ambient working temperature + 0 °C to + 40 °C (-20 °C to + 40 °C with optional tempering)
Storage ambient temperature - 25 °C to + 50 °C
Protection IP54
STN EN standards compliance Safety EN 50 178
EMC emissions STN EN 61000-6-1,3
Harmonic distortion:
STN EN 61000 – 3 – 11, STN EN 61000 – 3 – 12
Instructions EEC 2004/108/EEC, 2006/ 95/EEC