As the core component of photovoltaic power generation systems, the internal quality of photovoltaic modules directly determines the power generation efficiency and service life of the power station. Hidden defects such as hidden cracks, broken grids, virtual soldering, black cores, and hot spots, which are difficult to identify with the naked eye, can gradually lead to component power attenuation, reduced power generation, and even pose safety hazards. Jiangsu Jingwei Technology Co., Ltd. focuses on the quality control needs of photovoltaic modules throughout their entire life cycle. With profound technological accumulation and continuous innovation capabilities, we have launched the JW-EL3 portable EL detector. This lightweight and high-precision electroluminescent detection device, with "portable detection, precise imaging, and intelligent recognition" as its core advantages, has become a "portable doctor" for photovoltaic module quality testing and operation inspection, providing efficient and stable operation protection for photovoltaic power plants. Solar cell testing equipment
With the large-scale development of the photovoltaic industry, component quality problems have occurred frequently. Traditional appearance inspection and manual troubleshooting methods are inefficient and have a high rate of missed detections, making it difficult to meet the needs of refined operation and maintenance. EL (Electro Luminescence) detection technology, as the core technology for detecting internal defects in photovoltaic modules, applies a forward bias voltage to the module to make the solar cells emit infrared light. By capturing the image with a high-sensitivity camera, the internal micro defects can be clearly presented, and it is recognized as an accurate detection method in the industry. However, traditional EL detection equipment is mostly desktop, bulky, and requires fixed installation, which cannot meet the needs of rapid outdoor on-site detection and batch inspection. The Jiangsu Jingwei R&D team has overcome technical difficulties and integrated optical imaging, power electronics, intelligent control and other technologies to create the JW-EL3 portable EL detector, realizing the portability and on-site application of EL detection technology and filling the market gap in outdoor rapid detection in the industry.
The portable design of JW-EL3 portable EL detector completely breaks the application limitations of traditional EL devices. The equipment adopts an integrated lightweight structure, making the whole machine lightweight and portable. Paired with a customized wear-resistant portable case, it can be easily carried to any scene such as power plant sites, component warehouses, production workshops, etc. The device does not require complex installation and debugging, does not require an external large power supply, has a built-in high-energy lithium battery, has a long battery life, and has a short detection time for a single standard component, which can meet the rapid inspection needs of batch components. The body adopts dust-proof and waterproof industrial grade design, suitable for a wide temperature range of -10 ℃ to 50 ℃ working environment, and can stably image under complex outdoor conditions such as strong light, humidity, sand and dust, perfectly adapting to various outdoor detection scenarios of photovoltaic power plants.
Ultra high imaging accuracy and clear picture quality are the core competitiveness of JW-EL3. The equipment is equipped with high-resolution industrial CMOS sensors and professional optical lenses, with high imaging resolution and industry-leading minimum recognition accuracy. It can clearly identify various hidden problems such as micro cracks, broken grids, virtual soldering, black cores, edge defects, and abnormal bypass diodes in photovoltaic modules. The imaging is clear, the details are complete, and there are no noise or distortion, providing accurate basis for defect judgment. At the same time, the device is equipped with an intelligent light shielding system that can effectively filter out light, moonlight, starlight, and outdoor stray light interference. It supports accurate imaging in multiple environments such as low light, low light, and nighttime, without being limited by lighting conditions, greatly improving detection flexibility and applicability.
Intelligent operation and convenient data management greatly improve detection efficiency. The device is equipped with a high-definition touch screen display, paired with a user-friendly Chinese operation interface, one click start detection, automatic focus, automatic exposure, and automatic imaging, without the need for manual parameter adjustment, making it easy for beginners to get started quickly. Built in intelligent defect recognition algorithm can automatically label the location, type, and severity of defects, generate visual inspection reports, and avoid subjectivity and errors in manual interpretation. Support local storage and one click export of image detection, compatible with multiple formats, and can be transmitted to mobile phones, computers, etc. through Bluetooth, USB, etc. for easy archiving, traceability, and sharing, helping operation and maintenance personnel quickly grasp the health status of components and develop targeted operation and maintenance plans.
The application scenarios of JW-EL3 portable EL detector cover the entire photovoltaic industry chain, and its value is significant. In the component manufacturing process, it can be used for quality inspection before leaving the factory, strictly controlling product quality and preventing defective components from entering the market; In the acceptance process of power station construction, hidden cracks and damages caused by collisions and trampling during component transportation and installation can be investigated to ensure the quality of power station construction; In the daily operation and maintenance inspection process, components in operation can be regularly inspected to promptly detect hidden dangers such as aging, hot spots, and hidden crack expansion, intervene in maintenance in advance, and avoid loss of power generation; In the process of component scrapping evaluation and fault tracing, the root cause of the problem can be accurately located, providing scientific basis for component replacement and responsibility allocation.
Jiangsu Jingwei Technology Co., Ltd., as a cutting-edge enterprise in the field of photovoltaic testing equipment, always adheres to the development concept of "technology innovation driven, quality service oriented". The company relies on a strong R&D team to deeply cultivate the research and application of photovoltaic detection technology, strictly following industry standards such as IEC 60904 and GB/T 2297, and establishing a complete R&D, production, quality inspection, and service system to ensure that every product has high precision, high reliability, and high stability.
The successful launch of the JW-EL3 portable EL detector is a concentrated reflection of Jiangsu Jingwei's technological innovation strength and an important layout for the company to deepen its cultivation in the field of photovoltaic module quality control. In the future, Jiangsu Jingwei will continue to focus on industry pain points, increase research and development investment, continuously optimize product performance, enrich product matrix, and provide more high-quality, efficient, and convenient testing equipment and solutions for the photovoltaic industry, helping the global photovoltaic industry achieve high-quality and sustainable development.
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