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AS/NZS IEC 61829:2020

Current

Current

The latest, up-to-date edition.

Photovoltaic (PV) array - On-site measurement of current-voltage characteristics

Available format(s)

Hardcopy , PDF 1 User , PDF 3 Users , PDF 5 Users , PDF 9 Users

Language(s)

English

Published date

03-04-2020

The objective of this Standard is to specify procedures for on-site measurement of flat-plate photovoltaic (PV) array characteristics, the accompanying meteorological conditions, and use of these for translating to standard test conditions (STC) or other selected conditions.

This International Standard specifies procedures for on-site measurement of flat-plate photovoltaic (PV) array characteristics, the accompanying meteorological conditions, and use of these for translating to standard test conditions (STC) or other selected conditions.
Measurements of PV array current-voltage (I-V) characteristics under actual on-site conditions and their translation to reference test conditions (RTC) can provide:
- data for power rating or capacity testing;
- verification of installed array power performance relative to design specifications;
- detection of possible differences between on-site module characteristics and laboratory or factory measurements;
- detection of possible performance degradation of modules and arrays with respect to onsite initial data;
- detection of possible module or array failures or poor performance.
For a particular module, on-site measurements translated to STC can be directly compared with results previously obtained in a laboratory or factory for that module. Corrections for differences in the spectral or spatial response of the reference devices may need to be assessed as specified in IEC 60904.
On-site array measurements are affected by diode, cable, and mismatch losses, soiling and shading, degradation due to aging, and other uncontrolled effects. Therefore, they are not expected to be equal to the product of the number of modules and the respective module data.
If a PV array is formed with sub-arrays of different tilt, orientation, technology, or electrical configuration, the procedure specified in this International Standard is applied to each unique PV sub-array of interest.

Committee
EL-042
DocumentType
Standard
ISBN
978 1 76072 797 0
Pages
12
PublisherName
Standards Australia
Status
Current

Standards Relationship
IEC 61829:2015 Identical

First published as AS/NZS IEC 61829:2020.

IEC 60904-3:2016 Photovoltaic devices - Part 3: Measurement principles for terrestrial photovoltaic (PV) solar devices with reference spectral irradiance data
IEC 60904-2:2015 Photovoltaic devices - Part 2: Requirements for photovoltaic reference devices
IEC 61853-1:2011 Photovoltaic (PV) module performance testing and energy rating - Part 1: Irradiance and temperature performance measurements and power rating
IEC 60904-2 : 3.0 PHOTOVOLTAIC DEVICES - PART 2: REQUIREMENTS FOR PHOTOVOLTAIC REFERENCE DEVICES
IEC 60904-1:2006 Photovoltaic devices - Part 1: Measurement of photovoltaic current-voltage characteristics
IEC 60904-7:2008 Photovoltaic devices - Part 7: Computation of the spectral mismatch correction for measurements of photovoltaic devices
IEC 60904-5:2011 Photovoltaic devices - Part 5: Determination of the equivalent cell temperature (ECT) of photovoltaic (PV) devices by the open-circuit voltage method
IEC 60904-3 : 3.0 PHOTOVOLTAIC DEVICES - PART 3: MEASUREMENT PRINCIPLES FOR TERRESTRIAL PHOTOVOLTAIC (PV) SOLAR DEVICES WITH REFERENCE SPECTRAL IRRADIANCE DATA
IEC 60904-4:2009 Photovoltaic devices - Part 4: Reference solar devices - Procedures for establishing calibration traceability
IEC 60904-10:2009 Photovoltaic devices - Part 10: Methods of linearity measurement
ISO/IEC 17025:2017 General requirements for the competence of testing and calibration laboratories
IEC 60891:2009 Photovoltaic devices - Procedures for temperature and irradiance corrections to measured I-V characteristics

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