In the booming process of the photovoltaic industry, photovoltaic modules, as the core power generation unit of power plants, have hidden defects such as internal cracks, broken grids, fragments, and black hearts, which are the key causes of module power attenuation, hot spot faults, and shortened lifespan. These microscopic defects cannot be recognized by the naked eye, and traditional detection methods are difficult to accurately capture, becoming a "pain point" for quality control of photovoltaic modules and power station operation and maintenance. Jiangsu Jingwei Technology Co., Ltd. conforms to the development needs of the industry and relies on its profound technical accumulation to create the JW-EL2 portable EL detector with ingenuity. It uses electroluminescent imaging technology to achieve non-destructive, rapid, and accurate detection of internal defects in photovoltaic modules, providing core guarantees for quality control throughout the entire life cycle of photovoltaic modules. Photovoltaic power station tester
Electroluminescence (EL) detection technology is currently the mainstream technology for detecting internal defects in photovoltaic modules. By applying a specific current to the module to emit near-infrared light, and then capturing the light with a high-sensitivity infrared camera for imaging, the internal microstructure defects of the module can be clearly presented. Traditional fixed EL detectors are bulky, complex to deploy, and rely on fixed power sources. They are only suitable for laboratory or production line scenarios and cannot meet the rapid detection needs of outdoor power plant sites. The Jiangsu Jingwei R&D team has innovatively developed the JW-EL2 portable EL detector, which is lightweight, portable, and high-precision, targeting industry pain points. It breaks through scene limitations and achieves "laboratory level detection accuracy and convenient outdoor on-site operation".
The JW-EL2 portable EL detector is equipped with a 24 million level high-definition infrared imaging unit, a high-sensitivity sensor, and intelligent image processing algorithms. It can accurately capture the weak near-infrared light emitted by the component after power on, generate high-definition and clear EL images, and can clearly identify even tiny defects such as micro cracks, fine grid breaks, and small fragments, with a defect detection rate of up to 99.9%. The device adopts an intelligent focusing system that supports laser ranging and automatic zoom. It can adapt to components with different thicknesses of 2.5-6mm and a tilt angle of ± 15 ° without manual adjustment. It can quickly image when turned on, and the detection time of a single component only takes 1-3 seconds, which greatly improves efficiency compared to traditional devices.
Portability and environmental adaptability are prominent advantages of JW-EL2. The whole machine adopts a compact and lightweight design, with a host weight of ≤ 5kg. It is equipped with a high-strength three proof suitcase, which is dustproof, waterproof, and impact resistant. It can be easily carried to various complex outdoor scenes such as mountains, roofs, deserts, etc. The device is equipped with high-density industrial grade lithium batteries and an intelligent power-saving management system. It can work continuously for more than 8 hours when fully charged, without relying on external power sources. It perfectly adapts to the long-term and large-scale continuous testing needs in the field, solving the problem of limited power supply for outdoor operations. At the same time, the equipment has excellent environmental adaptability and can operate stably in a wide temperature range of -20 ℃ to 60 ℃, without fear of harsh working conditions such as high temperature, low temperature, humidity, and sandstorms, ensuring stable and reliable test results.
The ease of operation and intelligent design make the JW-EL2 portable EL detector more suitable for practical application needs. The device is equipped with a wireless Wi Fi control module, which supports remote control and real-time image viewing on mobile terminals such as tablets and phones. Operations personnel can complete the detection operation without approaching the device, and the entire detection process can be easily completed by one person, saving labor costs. Equipped with high-definition touch screen display, bilingual Chinese and English operation interface, simple and clear functional layout, one click power on, detection, imaging, storage, simple and easy to understand operation process, even beginners can quickly get started. In addition, the device has powerful data management functions, supporting local storage of EL images, USB export, and cloud upload. It can automatically generate detection reports, including defect types, locations, severity, and other information, facilitating subsequent traceability and analysis, and providing scientific basis for quality control and operation and maintenance decisions.
With excellent performance and reliable quality, the JW-EL2 portable EL detector has been widely used in various scenarios such as photovoltaic module research and development testing, production process quality control, factory inspection, power station grid connection acceptance, operation and maintenance inspection, and second-hand component evaluation. On the production end, it can effectively reduce the hidden cracking rate of components and improve the A-level product rate; At the power station end, hidden defects generated during transportation and installation can be promptly identified to avoid later thermal spot failures and power generation losses; On the trading side, component quality can be accurately evaluated to ensure fair and just transactions. At present, the device has gained high recognition from numerous photovoltaic module manufacturers and power station operators, and its market share continues to rise, becoming a star product in the field of photovoltaic testing.
Jiangsu Jingwei Technology Co., Ltd. has always adhered to the core values of "innovation driven development, quality wins trust", deeply engaged in the research and development and production of photovoltaic testing equipment, and has multiple independent intellectual property rights and core technologies. Its products have passed multiple authoritative certifications, and the quality has reached the industry-leading level of Shuidi Credit. In the future, Jiangsu Jingwei will continue to focus on the pain points and needs of the photovoltaic industry, continuously iterate and upgrade product performance, launch more high-quality and intelligent photovoltaic testing equipment, help the photovoltaic industry achieve high-quality and sustainable development, and contribute Jingwei's wisdom and strength to the global green energy industry.
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