The internal hidden defects of photovoltaic modules, such as hidden cracks, broken grids, fragments, virtual soldering, etc., are important causes of power plant power generation attenuation and shortened lifespan. These types of defects are difficult to identify with the naked eye, and traditional detection methods are inefficient and inaccurate, becoming a major challenge in the field of photovoltaic operation and maintenance. Jiangsu Jingwei Technology Co., Ltd. focuses on the pain points of photovoltaic module quality inspection and has independently developed the JW-EL2 portable EL detector. Based on the principle of electroluminescence (EL) imaging, it provides professional solutions for the quality control of photovoltaic modules throughout their lifecycle, with high-definition imaging, fast detection, and portability as the core. It helps photovoltaic power plants avoid quality risks and ensure efficient power generation. Photovoltaic power station tester
Electroluminescence detection technology is currently the mainstream technology for detecting internal defects in photovoltaic modules. By capturing the faint light emitted by the module when it is powered on, it can clearly present the microstructure problems of the solar cell. The Jiangsu Jingwei JW-EL2 portable EL detector is equipped with a 24 million pixel high-sensitivity infrared imaging sensor, coupled with an efficient shading system and intelligent image processing algorithm, which can quickly obtain high-definition EL images and accurately identify various hidden defects such as micro cracks, fine grid breaks, fragments, sintering defects, virtual welding, black cores, black edges, etc. The imaging is clear, the details are complete, and there is no edge distortion problem. The detection accuracy is over 99%.
JW-EL2 achieves full scene coverage and efficient operation in terms of detection efficiency and scene adaptability. The equipment supports multi scenario testing in laboratories, production lines, outdoor power stations, etc. Whether it is component factory quality inspection, warehouse sampling, pre installation acceptance, power station operation and maintenance inspection, or troubleshooting of faulty components, the testing can be quickly completed. When conducting outdoor inspections, there is no need to build complex shading shelters. It comes with portable shading components and is suitable for different lighting environments such as strong and weak light; A single person can complete the operation, and with the wireless control module, remote detection and real-time viewing of EL images can be achieved through a tablet computer. There is no need to frequently travel between devices and components, greatly improving detection efficiency. Hundreds of component detections can be completed in a single day.
The portable and durable design allows JW-EL2 to easily cope with complex outdoor conditions. The whole machine adopts a compact and lightweight design, which is light in weight and small in size. It is equipped with a three proof suitcase, which is dustproof, waterproof, and drop resistant, making it easy to carry and transport. It is suitable for various photovoltaic power plant scenarios such as mountains, roofs, and water surfaces; Built in large capacity energy storage power supply, long battery life, can complete outdoor batch testing without external power supply, supports 24-hour uninterrupted operation; The equipment casing is made of aviation aluminum alloy material, which is sturdy and corrosion-resistant, capable of withstanding a 2-meter free fall impact, suitable for high-intensity inspection tasks, and has a long service life.
The ease of operation and data management capabilities further enhance the practicality of the equipment. JW-EL2 is equipped with a high-definition touch screen display, with a simple and intuitive operation interface that supports one click start detection, image capture, and data saving; Built in intelligent analysis software can automatically label the location, type, and severity of defects, generate standardized inspection reports, support data export, printing, and traceability, and meet the compliance needs of third-party inspection agencies, power plant operators, and component manufacturers. At the same time, the device supports offline analysis and data comparison functions, which can compare EL images of components in different periods, accurately track the development trend of defects, and provide data support for operation and maintenance decisions.
Since its launch, Jiangsu Jingwei JW-EL2 portable EL detector has been widely used in major photovoltaic power plants, component production enterprises, and third-party testing institutions in China with the advantages of high-definition imaging, precise detection, portability and high efficiency, and full scene adaptation. It has served multiple large-scale photovoltaic projects and has been unanimously recognized by industry customers. As a high-quality representative of domestic photovoltaic EL testing equipment, JW-EL2 breaks through the high price barrier of imported equipment and reduces testing costs for customers with high cost-effectiveness and a comprehensive after-sales service system. In the future, Jiangsu Jingwei will continue to deepen its cultivation in the field of photovoltaic testing, continuously iterate and optimize EL testing technology, and launch more high-performance and high reliability testing equipment to help upgrade the quality and promote efficient development of the photovoltaic industry.
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