Question

Q9/ A typical PV module with 36 cells in series and an area of 0.633 m2
has the following measured characteristics at reference conditions: Isc
= 4.5 A,
Voc
= 21.4 V, Imp
= 3.95 A and Vmp
= 16.5 V. The temperature coefficient of the
short-circuit current μI,sc and the open-circuit voltage μV,oc are 0.00026 A/K and
−0.085 V/K, respectively. Determine the values of Io, IL,Rs,Rsh, and a at
operation conditions (cell temperature of 67.2◦C and an incident radiation of
648.3 W/m2)

Answer 1

R. 1000 1.5 × 1.381 × 10-23 x 298.2 × 36 sh,guess aref guess し.ref.guess o.ref,guess = 4.5e-21.4/1.387 ref guess- -1.387 1.602× 10-19 4.5 A = 8.96 × 10- 1.387 In (4.5 -3.65)/8.96 x 106.5 3.95 = 0.503 Rsh,ref = 52.4 Ω aref-0.9352 V rer 4.549 A osef 4.782 x 10-10 A Rs.ref =0.567 Ω a = 0.9666 V at 308.2 K I 2.432 x 10 273.1567.2 273154 75 = 1.068 V A at 308.2 K a 0.9352 AND 4A31 1.602 × 10-22 1.381 x 10-26298.15 340.15 x 10221.120107 4.782 x 10-1o (340.35) 815xp 2.436 x 1o-7 A 52.4 =0.684 = 76.7 Ω