PD IEC TS 63140:2021 - Photovoltaic (PV) Modules

Partial Shade Endurance Testing for Monolithically Integrated Products

In the ever-evolving world of renewable energy, photovoltaic (PV) technology stands at the forefront of sustainable power solutions. The PD IEC TS 63140:2021 standard is a crucial document for professionals in the solar energy sector, providing comprehensive guidelines for testing the endurance of photovoltaic modules under partial shade conditions. Released on May 7, 2021, this standard is an essential resource for ensuring the reliability and efficiency of monolithically integrated PV products.

Key Features of PD IEC TS 63140:2021

This standard, identified by the number PD IEC TS 63140:2021, is meticulously crafted to address the specific challenges faced by PV modules when exposed to partial shading. With a total of 18 pages, it offers detailed methodologies and testing procedures that are indispensable for manufacturers, researchers, and quality assurance professionals in the photovoltaic industry.

• Standard Number: PD IEC TS 63140:2021
• Pages: 18
• Release Date: 2021-05-07
• ISBN: 978 0 580 99123 3
• Status: Standard

Why Partial Shade Testing is Important

Partial shading is a common issue that can significantly impact the performance of photovoltaic modules. It occurs when a portion of the solar panel is obstructed by objects such as trees, buildings, or debris, leading to a reduction in energy output. The PD IEC TS 63140:2021 standard provides a framework for testing the resilience of PV modules against such conditions, ensuring that they maintain optimal performance even when not fully exposed to sunlight.

By adhering to the guidelines set forth in this standard, manufacturers can enhance the durability and efficiency of their products, ultimately leading to greater customer satisfaction and a stronger market presence.

Comprehensive Testing Procedures

The PD IEC TS 63140:2021 standard outlines a series of rigorous testing procedures designed to evaluate the endurance of PV modules under partial shade conditions. These procedures include:

• Simulated Shading Tests: Assessing the impact of various shading patterns on module performance.
• Thermal Cycling: Evaluating the module's ability to withstand temperature fluctuations caused by shading.
• Electrical Performance Analysis: Measuring changes in electrical output and efficiency under shaded conditions.

These tests are crucial for identifying potential weaknesses in PV modules and ensuring that they can withstand real-world conditions over their operational lifespan.

Benefits of Implementing PD IEC TS 63140:2021

Implementing the PD IEC TS 63140:2021 standard offers numerous benefits for stakeholders in the photovoltaic industry, including:

• Enhanced Product Reliability: By following the standard's guidelines, manufacturers can produce PV modules that are more resilient to partial shading, leading to improved reliability and customer trust.
• Increased Energy Efficiency: Modules tested under this standard are more likely to maintain high energy output even in suboptimal conditions, maximizing the return on investment for end-users.
• Competitive Advantage: Adhering to recognized standards can differentiate a company's products in a crowded market, providing a competitive edge.

Conclusion

The PD IEC TS 63140:2021 standard is an invaluable tool for anyone involved in the design, manufacture, or testing of photovoltaic modules. By providing a clear and comprehensive framework for partial shade endurance testing, it helps ensure that PV products are both reliable and efficient, even in challenging conditions. Whether you are a manufacturer looking to enhance your product offerings or a researcher seeking to advance the field of solar technology, this standard is an essential resource that can guide your efforts towards achieving excellence in the photovoltaic industry.

PD IEC TS 63140:2021

This standard PD IEC TS 63140:2021 Photovoltaic (PV) modules. Partial shade endurance testing for monolithically integrated products is classified in these ICS categories:

• 27.160 Solar energy engineering

This document provides test methods for quantifying the permanent change in a monolithically integrated PV module’s power output that may result from some potential partial shade conditions. Three tests are available, representing conditions of use, misuse, and most severe misuse. This document is applicable to monolithically integrated PV modules with one series-connected cell group or with multiple series-connected cell groups that are in turn connected in parallel. This document is not applicable to PV modules formed by the interconnection of separate cells.

With regard to shading, PV module documentation varies significantly by manufacturer. The physical tests prescribed in this document are applied without regard to manufacturer documentation or warranty policy, which may forbid certain shadows. The tests may therefore go beyond intended use, testing a module’s response to misuse. The tests are accelerated tests. They are intended to excite similar levels of stress as shadows that are possible during an extended period of outdoor service. The tests represent adverse shadow scenarios, but not necessarily the worst case scenario, which varies by product. The procedures are performed repeatedly and in high-irradiance conditions; shadows occurring only one time or in low-irradiance conditions are likely to cause less damage. This test procedure does not comprehensively evaluate the efficacy or completeness of manufacturer recommendations. This test procedure is not equivalent to, and is not intended to replace, the hot-spot endurance test in IEC 61215-2. The safety aspects of partial shading of PV modules are covered by IEC 61730-2 MST 22 and IEC 61215-2 MQT 09.