WEG CFW11 Applications Manual page 15

Installation
■ CFW11 Three-Phase 220 V;
■ 3 CV Three-Phase Pump;
■ Solar modules model TSM-PEG15H 345 W from the manufacturer TRINA SOLAR.
The photovoltaic solar panel model TSM-PEG15H has the following characteristics (NMOT):
Table 3.2 – Technical characteristics of the Photovoltaic Solar Module Polycrystalline
From the power (W ) needed (5.24kW
p
calculate the number of modules needed (5240 W
series connection of eight photovoltaic solar modules, a maximum power voltage of 285.6 Vdc will be
generated, with an open circuit voltage (Voc) of 349.6 Vdc.
Considering as operating limits the temperatures between 0 °C and 70 °C, it is possible to calculate the lowest
maximum power voltage for the temperature of 70 °C (������
voltage for the temperature of 0°C (������
NOTE!
The dimensioning values are according to the table 3.1 (within the limits of CFW11).
By associating eight solar modules in series, we are inserting steps of 2760 W
5.24kW , another set of eight modules will be associated in parallel, totaling 5.52kW
p
voltage dimensioning criterion (inverter operating range) and the power required to control the pump. The set
of 16 TSM-PEG15H solar modules have the technical characteristics shown in table 3.3.
Table 3.3 – Technical information for the set of 16 modules (2x Strings of 8x modules TSM-PEG15H)
The connection of the eight solar modules must be carried out according to the diagram in figure 3.2.
Electrical Characteristics
Nominal Power Output (P
Voltage at Pm Point (V
Current at Pm Point (I
Open Circuit Voltage (V
Short Circuit Current (I
Module Efficiency
) and the power of the chosen solar panel (345W
p
p
= 376.7 Vdc).
������
Specific Information PV Installation (NMOT) x PV Quantity
Nominal Power Output (P
Voltage at Pm Point (V
Current at Pm Point (I
Open Circuit Voltage (V
Short Circuit Current (I
Figure 3.2 – Connection of solar modules
) 345 W
mpp
) 35,7 V
mpp
) 7,31 A
mpp
) 43,7 V
oc
) 7,76 A
sc
16,8 %
/ 345 W ), which would be 16 modules. By opting for a
p
= 236.7 Vdc) and the highest open circuit
������
) 5520 W
mpp
) 285,6 V
mpp
) 14,62 A
mpp
) 349,6 V
oc
) 15,52 A
sc
p
), it is possible to
p
. To meet the application needs
p
. Thus, it meets the
p
p
Solar Pump Drive | 15