IEC 60904-10:2009 PDF

Name: IEC 60904-10:2009 — Photovoltaic devices - Part 10: Methods of linearity measurement
SKU: IEC 60904-10:2009
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Photovoltaic devices - Part 10: Methods of linearity measurement

Название (английский):

IEC 60904-10:2009

Photovoltaic devices - Part 10: Methods of linearity measurement

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 25
Дата публикации:: 17 декабря 2009 г.
Издание:: IEC IS 60904 edition 2 version 1
ICS:: 27.160

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Описание (английский):

IEC 60904-10:2009 describes procedures used to determine the degree of linearity of any photovoltaic device parameter with respect to a test parameter. It is primarily intended for use by calibration laboratories, module manufacturers and system designers. The main technical changes with regard to the previous edition are as follows: - added clause for two-lamp method for Isc linearity; - removed clause on spectral responsivity nonlinearity because it is not used by any PV testing / calibration group.

Abstract

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Стандарты, упомянутые в описании

Overview

IEC 60904-10:2009 is an international standard published by the International Electrotechnical Commission (IEC) that defines methods for linearity measurement of photovoltaic (PV) devices. It provides standardized procedures to assess the degree to which various parameters of photovoltaic devices vary linearly with respect to test parameters such as irradiance and temperature. This standard is essential for calibration laboratories, PV module manufacturers, and system designers to ensure accurate performance evaluation and reliability of PV modules and systems.

By establishing clear linearity requirements and measurement protocols, IEC 60904-10:2009 supports consistent quality control and performance translation under different environmental conditions. It enhances confidence in linear performance models used broadly in the photovoltaic industry.

Key Topics

Scope and Purpose: The standard focuses on measuring linearity of photovoltaic device parameters, primarily short-circuit current (Isc) and open-circuit voltage (Voc), with respect to environmental variables like irradiance and temperature.

Measurement Procedures: IEC 60904-10 outlines several measurement methods:

Natural sunlight testing under stable conditions.
Use of solar simulators for indoor controlled tests.
A two-lamp method specifically introduced to measure short-circuit current linearity.
Methods based on absolute spectral responsivity to determine linearity indirectly.

Linearity Metrics: It replaces traditional standard deviation metrics with percent deviation from linearity to better quantify the degree of non-linearity.

Test Conditions and Equipment: The standard details apparatus requirements such as temperature controls, irradiance adjustment tools (neutral density or mesh filters), I-V curve measurement equipment, and spectral response instruments.

Report Requirements: Conforms with ISO/IEC 17025 for calibration laboratories, demanding detailed reporting including linearity test results, conditions, and method descriptions.

Technical Updates:

Addition of the two-lamp method for improved Isc linearity assessment.
Removal of spectral responsivity non-linearity clause due to limited practical utility.
Clarification on linearity acceptance criteria considering small temperature coefficients.

Applications

Calibration Laboratories: IEC 60904-10 provides calibration labs with standardized methods to evaluate PV device performance linearity ensuring accuracy and repeatability in device assessments.

PV Module Manufacturers: Enables manufacturers to verify that their modules exhibit linear behavior with respect to irradiance and temperature variations before market release, improving product reliability.

System Designers and Engineers: Assists in performance modeling and system design by confirming linear assumptions used in energy yield predictions and performance translations across different climates.

Quality Control and Compliance: Manufacturers and certifying bodies leverage this standard for conformity assessment during product qualification testing.

Research and Development: Researchers studying PV device characteristics use the linearity measurement methods to better understand material and device behavior under varying environmental conditions.

Related Standards

IEC 60891 – Procedures for temperature and irradiance corrections to measured I-V characteristics, complementing linearity evaluation by providing correction protocols.

IEC 60904-1 – Measurement of photovoltaic current-voltage characteristics, specifying the fundamental measurement techniques needed for linearity tests.

IEC 60904-3 – Measurement principles for terrestrial photovoltaic solar devices with reference spectral irradiance data, aiding spectral accuracy in measurements.

IEC 60904-8 – Measurement of spectral response of PV devices, important for absolute spectral responsivity methods.

IEC 60904-9 – Solar simulator performance requirements, critical for indoor linearity testing.

IEC 61215 and IEC 61646 – Design qualification and type approval standards for crystalline silicon and thin-film PV modules, respectively, where linearity is a component of overall module performance validation.

ISO/IEC 17025 – General requirements for the competence of testing and calibration laboratories, relevant for compliance in linearity test reporting and laboratory accreditation.

For professionals in photovoltaic testing, design, and manufacturing, IEC 60904-10:2009 safeguards the reliability of linearity assumptions underpinning PV device performance models. Compliance with this standard enables accurate performance assessment, enhances product quality, and supports international market acceptance.

IEC 60904-10:2009 PDF

Abstract

Похожие стандарты

Overview

Key Topics

Applications

Related Standards

Технические детали

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