SLIDE 1
PVMD
Delft University of Technology
Learning objectives
1. PV module design 2. Electrical properties
1. IV curve from cell to module
- Ideal module
- Non-ideal module
- Mismatching
PVMD Delft University of Technology Learning objectives 1. PV - - PowerPoint PPT Presentation
PVMD Delft University of Technology Learning objectives 1. PV - - PowerPoint PPT Presentation
IV Curve from Cell to Module Part 1 Olindo Isabella PVMD Delft University of Technology Learning objectives 1. PV module design 2. Electrical properties 1. IV curve from cell to module Ideal module Non-ideal module
SLIDE 2
SLIDE 3
Cell I-V curve
1. 2. 3. 4. 5.
Voltage [V] Illuminated I-V curve Dark Open circuit voltage VOC Short circuit current ISC Maximum power point MPP IMPP VMPP
SLIDE 4
Ideal Module I-V curve
( )
þ ý ü î í ì
- ú
û ù ê ë é × × ×
- ×
= 1 / exp T k n N V q I M I M I
T SC T
Single cell ideality factor
M = numbers of cells in parallel N = numbers of cell in series n = single cell ideality factor ISC = short-circuit current I0 = saturation current Cell Module
N·VOC M·ISC
V [V] I [A]
VOC ISC
SLIDE 5
Cell dissipates Cell dissipates Cell generates
Non-Ideal solar cell
Partial shading +V [V] I [A]
Breakdown Ideal Series resistance
- V [V]