BS EN 60891:2010
$142.49
Photovoltaic devices. Procedures for temperature and irradiance corrections to measured I-V characteristics
| Published By | Publication Date | Number of Pages |
| BSI | 2010 | 26 |
IEC 60891:2009 defines procedures to be followed for temperature and irradiance corrections to the measured I-V (current-voltage) characteristics of photovoltaic devices. It also defines the procedures used to determine factors relevant for these corrections. Requirements for I-V measurement of photovoltaic devices are laid down in IEC 60904-1. The main technical changes with regard the previous edition are as follows: – extends edition 1 translation procedure to irradiance change during I-V measurement; – adds 2 new translation procedures; – revises procedure for determination of temperature coefficients to include PV modules; – defines new procedure for determination of internal series resistance; – defines new procedure for determination of curve correction factor.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 6 | English CONTENTS |
| 7 | 1 Scope 2 Normative references 3 Correction procedures 3.1 General |
| 8 | 3.2 Correction procedure 1 |
| 9 | 3.3 Correction procedure 2 |
| 10 | 3.4 Correction procedure 3 |
| 12 | Figures Figure 1 – Example of the correction of the I-V characteristics by Equations (6) and (7) |
| 13 | Figure 2 – Schematic diagram of the relation of G3 and T3 which can be chosen in the simultaneous correction for irradiance and temperature, for a fixed set of T1, G1, T2, and G2 by Equations (8) and (9) |
| 14 | Figure 3 – Schematic diagram of the processes for correcting the I-V characteristics to various ranges of irradiance and temperature based on three measured characteristics |
| 15 | 4 Determination of temperature coefficients 4.1 General 4.2 Apparatus Figure 4 – Schematic diagram of the processes for correcting the I-V characteristics to various ranges of irradiance and temperature based on four measured characteristics |
| 16 | 4.3 Procedure in natural sunlight Figure 5 – Positions for measuring the temperature of the test module behind the cells |
| 17 | 4.4 Procedure with a solar simulator 4.5 Calculation of temperature coefficients 5 Determination of internal series resistance RS and R’S 5.1 General |
| 18 | 5.2 Correction procedure 1 Figure 6 – Determination of internal series resistance |
| 19 | 5.3 Correction procedure 2 |
| 20 | 6 Determination of the curve correction factor k and k’ 6.1 General 6.2 Procedure Figure 7 – Determination of VOC irradiance correction factor and internal series resistance |
| 21 | 7 Reporting Figure 8 – Determination of curve correction factor |
| 23 | Bibliography |
