Question

ouUIC. ( HUU ULIC 3. ler one su 1000W/m2 A PV module with 36 cells in a series has photon current of 4A at 25°C under one sun.. Each cell characteristics are: I, is 0. 6A, R= 512 and Rs = 0.00512. a. If the mpp voltage across the load is 16.5V, find mpp current and the max power b. If one cell of the string is fully shaded, what would be output voltage across the load without bypass diode? c. Recalculate part b if bypass diode is provided. Assume ideal diode. . . 111.Jahai full

Answer 1

The effective solar cell diagram Given photon current (Iv=44S To: 0-6 A we have It Tol el a from this vodi = 26x103 enla-gt NOC = 0.5880 :. The voltage across each eeli 1001)=0.688U ... The voltage across 36-leus: 36X0.581 36X0.58 1:21:17 By using kul UL-16-5V Ves - 21.17268 -16. - 4.672V 4.67268 16.5 - RL 0.01765 2 RL o.orn Scanned with

-By Iccl Jp H= Id + IsetIL . 4 A 721572 +21.17 . 5 0.0126 +0.05 0.0116 +0. pr. 321.464 under no load condition, Isl (shost iscuit =0 currow VOC=V1=21.02261 under short circuit-condition , voc=ov; -4234.4 A ISC-21.17266 oooss Maximum Power: 21.172 x 21.112 0.005 569.650 Klaatts