Proline Pro Series User Manual page 6

PV Module Selection:
When selecting proper PV modules, please be sure to consider below requirements first:
1. Open circuit Voltage (Voc) of PV modules not exceeds max. PV array open circuit voltage of inverter.
INVERTER MODEL
Charging Current (PWM)
System DC Voltage
Operating Voltage Range
Max. PV Array Open Circuit Voltage
2. Max. Power Voltage (Vmpp) of PV modules should be close to best Vmp of inverter or within Vmp range to get
best performance. If one PV module cannot meet this requirement, it's necessary to have several PV modules
in series connection. Refer to below table.
Model
1200VA
2400VA
Note: * Vmp: panel max power point voltage.
The PV charging efficiency is maximized while PV system voltage is close to Best Vmp.
Maximum PV module numbers in Series: Vmpp of PV module * X pcs ≒ Best Vmp of Inverter or Vmp
range
PV module numbers in Parallel: Max. charging current of inverter / Impp
Total PV module numbers = maximum PV module numbers in series * PV module numbers in
parallel
Take 1200VA inverter as an example to select proper PV modules. After considering Voc of PV module not
exceeds 40Vdc and max. Vmpp of PV module close to 15Vdc or within 15Vdc ~ 18Vdc, we can choose PV
module with below specification.
Maximum Power (Pmax)
Max. Power Voltage Vmpp(V)
Max. Power Current Impp(A)
Open Circuit Voltage Voc(V)
Short Circuit Current Isc(A)
Maximum PV module numbers in Series: 1
PV module numbers in Parallel: 10
Total PV module numbers: 1 x 10 = 10
Take 2400VA inverter as an example to select proper PV module. After considering Voc of PV module not exceed
60Vdc and max. Vmpp of PV module close to 30Vdc or within 30Vdc ~ 32Vdc, we can choose PV module with
below specification.
Maximum Power (Pmax)
Max. Power Voltage Vmpp(V)
Max. Power Current Impp(A)
Open Circuit Voltage Voc(V)
Short Circuit Current Isc(A)
Maximum PV module numbers in Series: 1
PV module numbers in Parallel: 6
Total PV module numbers: 1 x 6 = 6
Pro1200VA
12Vdc
15~18Vdc
40Vdc
Best Vmp
15Vdc
30Vdc
85W Max. PV module numbers in series
17.6V 1  17.6 x 1 ≒ 15 ~ 18
4.83A PV module numbers in parallel
10  50 A / 4.83
21.6V
Total PV module numbers
5.03A
1 x 10 = 10
260W Max. PV module numbers in series
1  30.9 x 1 ≒ 30 ~ 32
30.9V
8.42A PV module numbers in parallel
6  50 A / 8.42
37.7V
Total PV module numbers
8.89A
1 x 6 = 6
4
Pro2400VA
50Amp
24Vdc
30~32Vdc
60Vdc
Vmp range
15V~18V
30V~32V