Table 1 Photovoltaics parameters of PV panels for 5 measurements (1–5).

Parameters	units	1	2	3	4	5
Light intensity	E [lux]^a	119,400	124,900	125,800	126,300	126,500
Sunlight	G [W/m²]	1029	1077	1084	1089	1090
Active area of module	A [m²]	0.384	0.384	0.384	0.384	0.384
Open circuit voltage	V_oc [V]^b	22.3 V	21.8	21.7	21.9	22.3
Short circuit current	I_sc [mA]	3.2	3.3	3.3	3.3	3.4
Voltage at maximum power point	V_MPP [V]	18.8	13.2	14.1	15.5	15.5
Current at maximum power point	I_MPP [mA]	2.1	3.0	2.9	2.7	2.7
Maximum power	P_max [mW]	39.6	39.2	40.9	42.2	42.4
Power conversion efficiency	ɳ [%]	10.9	10.4	10.7	11.0	11.1
Fill factor	FF	0.6	0.5	0.6	0.6	0.6

^a LPX-10 m; display range 40klux ÷ 399.9klux; CIE spectral sensitivity (human eye curve); matching error ± 3%; spectral uncertainty f1 ≤ 2%; fundamental uncertainty ± (2%, + 5 digits); relative operating humidity 0%÷80%; operating temperature 0 °C ÷ 50 °C.
^b Microprocessor current and voltage measurement device based on the INA 3221 system; voltage range V_max = 26 V; current range I_max = 3.2 A; R_shut 50 mΩ; V_SHUNT = −163.84 mV ÷ 163.84 mV; V_OS = ± 80 µV; V_BUS =0 ÷ 26 V; Gain Error < 0.25%; CMRR_max = 110 dB; total measurement error Δ_max < 0.4%.

Quick links

Search