Calibration method of secondary standard assembly of photovoltaic assembly
By performing photoattenuation and light-proofing of the secondary standard components of photovoltaic modules, combined with calibration of the primary standard components, the problems of accuracy and stability of the secondary standard components of photovoltaic modules are solved, and the reliability of mass production power of photovoltaic modules is achieved.
CN119727603APending Publication Date: 2025-03-28YINGLI ENERGY DEV CO LTD
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Patent Information
- Application Number
- CN202411920172.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-25
- Publication Date
- 2025-03-28
AI Technical Summary
Technical Problem
The prior art is difficult to accurately and stably test the secondary standard components of photovoltaic modules, affecting the mass production power and production capacity of photovoltaic products.
Method used
Power stability and accuracy of the secondary standard components are ensured by photoattenuation and light-proofing of the selected secondary standard components.
Benefits of technology
The accuracy and stability of the test results of secondary standard components are improved, the power reliability of photovoltaic module mass production is ensured, and abnormal attenuation and rebound fluctuations in power values are avoided.
✦ Generated by Eureka AI based on patent content.
Abstract
The invention provides a calibration method for a secondary standard assembly of a photovoltaic assembly, and belongs to the technical field of photovoltaic assembly testing, and the method comprises the steps: testing the initial power of the secondary standard assembly through a primary standard assembly calibration device with the same specification as the secondary standard assembly to be calibrated; taking the primary standard assembly as a control assembly, and testing the initial power K1 of the control assembly; carrying out light-induced attenuation on the secondary standard component, and when the power of the secondary standard component meets the requirement of (Pmax-Pmin) / Paviage, carrying out light-induced attenuation on the secondary standard component; if yes, determining that the power of the secondary standard component is stable, otherwise, continuing to carry out light-induced attenuation until the condition is met; if the test power of the component is controlled to be within the range of K1 + / -0.5%, judging that the light-induced attenuation power of the secondary standard component is stable; continuously standing the secondary standard assembly in a dark place, and testing the power of the secondary standard assembly in the dark place; and when the power of the secondary standard component is stable after light-induced attenuation and light shielding, the power calibrated by the secondary standard component is judged to be stable.
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