BS EN 62670-2:2015
$142.49
Photovoltaic concentrators (CPV). Performance testing – Energy measurement
| Published By | Publication Date | Number of Pages |
| BSI | 2015 | 30 |
This part of IEC 62670 specifies the minimum requirements for determining the energy output and performance ratio for CPV modules, arrays, assemblies and power plants using an on-sun, measurement based method.
The purpose of this International Standard is to define testing methods, to establish a standard energy measurement for CPV modules, arrays, assemblies and power plants, and to specify the minimum reporting information.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 6 | English CONTENTS |
| 8 | FOREWORD |
| 10 | INTRODUCTION |
| 11 | 1 Scope 2 Normative references 3 Terms and definitions |
| 13 | 4 Description of the method |
| 14 | 5 Selection of subset under test 6 Operation, maintenance and cleaning Figures Tables Table 1 – Steps of the energy measurement procedure |
| 15 | 7 Downtimes and unavailability 8 Parasitic energy 9 Data acquisition 9.1 General requirements 9.1.1 Data acquisition system (DAS) |
| 16 | 9.1.2 Sampling interval |
| 17 | 9.2 Mandatory measurements 9.2.1 General 9.2.2 Direct normal irradiance 9.2.3 Global plane of array irradiance Table 2 – Mandatory measurements. |
| 18 | 9.2.4 Ambient air temperature 9.2.5 Wind speed 9.2.6 Electrical power or energy 9.2.7 Cold source temperature (actively cooled systems only) 10 Data post-processing 10.1 Calculation of energy from integrated power values |
| 19 | 10.2 Calculation of energy from discrete power values 10.3 Calculation of the DNI time series |
| 21 | 10.4 Calculation of the active AC or DC energy Figure 1 – Nomenclature of angles used in Formula (2) |
| 22 | 11 Calculation of the performance ratio 11.1 General 11.2 AC performance ratio |
| 23 | 11.3 DC performance ratio |
| 24 | 12 Derived parameters 13 Report |
| 26 | Annex A (informative) Some suggested ways to filter datain order to identify incorrect data |
| 27 | Annex B (informative) Best practices for power plant energy measurement |
| 28 | Annex C (normative) Optionally derived parameters C.1 General C.2 Energy Production Rate (EPR) C.3 Capacity Factor (CF) |
