Table 7.3 Electrical characteristics of PV module A and module B Characteristic at STC Module A Module B Maximum power 350 W |20 W Optimum operating voltage (V*) Optimum operating current (I*) Open-circuit voltage (Voc) 38.54 V 18 V 9.08 A 1.11 A 47.43 V 22.5 V Short-circuit current (Isc) 9.49 A 1.23 A Short-circuit current temp. coeff. (a¡) 0.040 %/K 0.045%/K Open-circuit voltage temp. coeff. (a») -0.29 %/K -0.34 %/K Max. power temp. coeff. (@p) -0.38 %/K -0.47 %/K NOCT 45°C 47°C Number of cells 72 (series) 36 (series) 7.1 Consider PV module A whose characteristics are shown in Table 7.3. Com- pute: • The cell temperature if the irradiance is 1000 W/m² and the ambient temperature is 31°C • The short-circuit current, open-circuit voltage, and maximum power if the irradiance is 1000 W/m² and the cell temperature is as computed in the previous part of this problem The short-circuit current if the irradiance is 500 W/m² The power produced using Osterwald's method if the irradiance is 650 W/m² and the ambient temperature is 20°C 7.2 Repeat Problem 7.1 but consider module B.
Table 7.3 Electrical characteristics of PV module A and module B Characteristic at STC Module A Module B Maximum power 350 W |20 W Optimum operating voltage (V*) Optimum operating current (I*) Open-circuit voltage (Voc) 38.54 V 18 V 9.08 A 1.11 A 47.43 V 22.5 V Short-circuit current (Isc) 9.49 A 1.23 A Short-circuit current temp. coeff. (a¡) 0.040 %/K 0.045%/K Open-circuit voltage temp. coeff. (a») -0.29 %/K -0.34 %/K Max. power temp. coeff. (@p) -0.38 %/K -0.47 %/K NOCT 45°C 47°C Number of cells 72 (series) 36 (series) 7.1 Consider PV module A whose characteristics are shown in Table 7.3. Com- pute: • The cell temperature if the irradiance is 1000 W/m² and the ambient temperature is 31°C • The short-circuit current, open-circuit voltage, and maximum power if the irradiance is 1000 W/m² and the cell temperature is as computed in the previous part of this problem The short-circuit current if the irradiance is 500 W/m² The power produced using Osterwald's method if the irradiance is 650 W/m² and the ambient temperature is 20°C 7.2 Repeat Problem 7.1 but consider module B.
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Do problem 7.2 . see problem 7.1 and table 7.3 for what you need to get.
Transcribed Image Text:Table 7.3 Electrical characteristics of PV module A and module B
Characteristic at STC
Module A
Module B
Maximum power
350 W
|20 W
Optimum operating voltage (V*)
Optimum operating current (I*)
Open-circuit voltage (Voc)
38.54 V
18 V
9.08 A
1.11 A
47.43 V
22.5 V
Short-circuit current (Isc)
9.49 A
1.23 A
Short-circuit current temp. coeff. (a¡)
0.040 %/K
0.045%/K
Open-circuit voltage temp. coeff. (a»)
-0.29 %/K
-0.34 %/K
Max. power temp. coeff. (@p)
-0.38 %/K
-0.47 %/K
NOCT
45°C
47°C
Number of cells
72 (series)
36 (series)
Transcribed Image Text:7.1 Consider PV module A whose characteristics are shown in Table 7.3. Com-
pute:
• The cell temperature if the irradiance is 1000 W/m² and the ambient temperature
is 31°C
• The short-circuit current, open-circuit voltage, and maximum power if the
irradiance is 1000 W/m² and the cell temperature is as computed in the previous
part of this problem
The short-circuit current if the irradiance is 500 W/m²
The power produced using Osterwald's method if the irradiance is 650 W/m² and
the ambient temperature is 20°C
7.2 Repeat Problem 7.1 but consider module B.
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