As the core power generation component of photovoltaic power plants, photovoltaic modules have hidden defects such as internal cracks, broken grids, and fragments, which are the key causes of power attenuation, reduced power generation efficiency, and shortened service life of the modules. Traditional testing equipment is bulky, complex to operate, and relies on laboratory environments, making it difficult to meet the needs of rapid on-site testing and batch screening of photovoltaic modules. Jiangsu Jingwei Technology Co., Ltd. focuses on the pain points of photovoltaic module quality control, relying on the core technology of electroluminescence imaging, and ingeniously creating the JW-EL2 portable EL detector. With the core advantages of high-definition imaging, portability, efficiency, and intelligent recognition, it achieves rapid and accurate detection of hidden defects in photovoltaic modules, providing a one-stop solution for photovoltaic module production quality inspection, power station operation and maintenance, and quality acceptance, and building a solid quality defense line in the photovoltaic industry. Photovoltaic power station tester
Jiangsu Jingwei Technology, as an innovative enterprise in the field of new energy detection equipment in China, has been deeply involved in the defect detection technology of photovoltaic modules for many years. It has a research and development team composed of experts in multiple fields such as optics, electronics, and software, and has the full chain capability from core algorithm research and development to equipment manufacturing. The company has always adhered to the concept of "precise detection, quality assurance", and has overcome multiple technical challenges such as high-sensitivity imaging, portable shading, and intelligent image analysis to meet the core requirements of photovoltaic module hidden crack detection scenarios. It has successfully developed the JW-EL2 portable EL detector, breaking the technological monopoly of similar foreign devices and filling the market gap of high-end portable EL detection equipment in China.
The JW-EL2 portable EL detector is based on the principle of electroluminescence (EL) imaging, and its core imaging performance has reached the industry-leading level. The device is equipped with a 24.76 million level high-sensitivity infrared camera, paired with a professional optical lens, which can accurately capture the weak infrared light emitted by photovoltaic modules when they are powered on. The imaging resolution is high and the image quality is clear, which can clearly present micro scale hidden cracks, fine grid breaks, fragments, sintering defects, electrode detachment, and process abnormalities inside the battery cell. The detection accuracy far exceeds traditional visual inspection and ordinary equipment screening. Different from traditional equipment, JW-EL2 is equipped with an efficient intelligent shading system that can quickly adapt to different lighting environments, effectively filtering out interference light such as natural light, lighting, moonlight, etc. Whether it is bright outdoor, dim warehouse, or night work, clear and pure EL images can be obtained without the need to build a dedicated darkroom, greatly expanding the detection scene.
Portable and efficient design enables JW-EL2 to achieve "anytime, anywhere, fast detection". The equipment adopts a compact and lightweight structure design, with a lightweight overall weight. It is equipped with a three proof pull rod box, which is dustproof, waterproof, and impact resistant, making it easy to carry and transport. It can easily meet the transfer needs of multiple scenarios such as outdoor power stations, component warehouses, and production workshops. The device integrates high-energy density lithium batteries with strong endurance. It can continuously detect more than 200 standard components on a single charge without frequent charging, meeting the needs of batch testing. At the same time, the device supports wireless control and real-time imaging functions, equipped with a WIFI controller and locator. Operators can remotely control the device through a mobile app or tablet, without the need for close contact with components. The operation is safe and convenient, and the EL image acquisition and processing time of a single standard component is less than 15 seconds, greatly improving detection efficiency.
Intelligent image analysis function significantly reduces the detection threshold and improves detection accuracy. JW-EL2 has built-in intelligent image processing algorithms that can automatically perform noise reduction, enhancement, contrast optimization, and other processing on the collected EL images, clearly highlighting defect features. The device supports offline analysis and data comparison functions, which can automatically store detection images and data for subsequent traceability analysis. At the same time, it can compare the luminescence images of new and old components to accurately evaluate the degree of component attenuation. Equipped with professional management software and mobile app, it supports functions such as image viewing, defect annotation, report generation, and data export. It can automatically generate standardized inspection reports, clearly marking the location, type, quantity, and severity of defects, without the need for manual tedious organization, thus improving work efficiency. In addition, the equipment is compatible with various specifications of photovoltaic modules, supporting single component detection and batch detection of string components, and flexibly meeting the detection needs of different scenarios.
In terms of application scenarios, the JW-EL2 portable EL detector covers the entire lifecycle quality control of photovoltaic modules, with significant application value. In the component manufacturing process, it can be used for quality sampling and factory inspection of the production line, timely detection of process defects in the production process, and prevention of unqualified components from leaving the factory; In the acceptance process of power station construction, batch testing can be conducted on the received components to screen for hidden cracks, damages, and other issues that may occur during transportation and installation, ensuring the quality of power station construction; In the operation and maintenance of the power station, regular inspections of the operating components can be carried out to detect hidden defects in advance, replace faulty components in a timely manner, and avoid the expansion of defects leading to power generation losses; In scenarios such as component scrap assessment and third-party testing and certification, accurate and reliable testing data can also be provided to support decision-making.
With excellent product performance and reliable quality, the JW-EL2 portable EL detector has been highly recognized and widely used by numerous photovoltaic module manufacturers, large power plant operators, and third-party testing institutions. Jiangsu Jingwei Technology always adheres to customer demand orientation and technological innovation as the core, continuously optimizing product performance and improving product reliability. At the same time, it provides professional technical training, installation and commissioning, after-sales maintenance and other one-stop services to solve customers' worries.
In the future, Jiangsu Jingwei Technology will continue to deeply cultivate the field of photovoltaic testing, increase research and development investment, explore the deep integration of EL testing technology with AI artificial intelligence and big data analysis, launch more intelligent and efficient testing equipment, and help the photovoltaic industry achieve the transformation and upgrading from "scale expansion" to "quality improvement", contributing Jingwei's wisdom and strength to the healthy and sustainable development of the global photovoltaic industry.
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