As the core power generation unit of a power station, photovoltaic modules have hidden defects such as internal cracks, broken grids, and virtual soldering, which are the main causes of power attenuation, hot spot faults, and shortened lifespan of the modules. Traditional detection methods are difficult to accurately identify micro defects, which can lead to hidden dangers and affect the long-term stable operation of power plants. Jiangsu Jingwei Technology Co., Ltd. focuses on the quality control and operation testing needs of photovoltaic modules, and independently develops the JW-EL2 portable EL detector. Based on the core principle of electroluminescence (EL), it uses high-definition imaging technology, portable design, and intelligent analysis capabilities to achieve rapid and accurate detection of internal defects in photovoltaic modules, providing a hardcore guarantee for the quality control of the entire life cycle of photovoltaic modules. Photovoltaic power station tester
Electroluminescence (EL) detection technology is currently the "gold standard" for detecting internal defects in photovoltaic modules. By capturing the faint light emitted by the module when it is powered on, micro defects are transformed into visual images, which can clearly present hidden problems that cannot be recognized by the human eye. The JW-EL2 portable EL detector is a high-precision diagnostic equipment designed by Jingwei Technology for photovoltaic field detection scenarios. It is equipped with a 20 million level high-sensitivity infrared imaging sensor and intelligent image processing algorithms, which can accurately capture weak luminescent signals of components. The imaging is clear and detailed, and can effectively identify more than ten internal defects such as hidden cracks, broken grids, fragments, sintering defects, virtual soldering, black cores, black edges, PID attenuation, etc. The detection accuracy reaches the leading level in the industry.
Compared to traditional desktop EL detectors, JW-EL2 has achieved significant breakthroughs in portability and scene adaptability. The device adopts a compact and lightweight design, integrating the host, imaging unit, and testing power supply, and is equipped with a retractable tripod and portable protective box. It can be easily carried and quickly deployed by a single person without the need for a professional installation team, greatly reducing the threshold for on-site testing. Whether it is incoming material inspection and factory quality acceptance in the photovoltaic module production workshop, or on-site operation and maintenance inspection, troubleshooting of faulty components, and arrival acceptance testing in the power station, JW-EL2 can be flexibly adapted to completely solve the pain points of traditional equipment being bulky and unable to move for testing.
In terms of performance and security design, JW-EL2 balances efficient detection with stability and reliability. The equipment is equipped with a programmable constant current testing power supply, with stable and adjustable output current, suitable for different specifications of photovoltaic modules, and a safe and controllable detection process to avoid component damage caused by overcurrent; Built in large capacity lithium battery, capable of testing 500-800 components on a single charge, with a battery life that meets all day outdoor operation and maintenance needs. Adopting an efficient shading system, clear imaging can be achieved in natural light environments without the need to build a darkroom, greatly improving on-site detection efficiency; Supports WIFI wireless image transmission, and the detected images can be transmitted in real-time to a tablet or mobile phone. Operators can remotely view the imaging results and determine the type of defect without the need for close contact with components, improving operational safety.
Intelligent operation and data management are one of the core advantages of JW-EL2. The device is equipped with an intelligent detection and control system, which supports one click start detection, autofocus, image capture and storage, without the need for complex debugging. Novices can easily operate it after simple training, with a single component detection time of ≤ 30 seconds, greatly improving batch detection efficiency. Built in defect intelligent recognition software, which can automatically label the location, type, and size of defects, and generate visual inspection reports; Support local storage and export of detection data, can be integrated with enterprise quality control systems, achieve traceability of detection records, statistical analysis of quality problems, and help enterprises optimize production processes and improve product quality.
Jiangsu Jingwei Technology has been deeply involved in the field of photovoltaic testing for many years, and its core team has rich experience in the research and development of photovoltaic equipment and industry applications. With the advantages of high precision, high stability, and high cost-effectiveness, the company's products have been widely recognized by the market as Shuidi Credit. The development and launch of JW-EL2 portable EL detector is an important achievement of the company based on industry demand and breaking through technological bottlenecks. It further improves the quality testing solution for photovoltaic modules and provides efficient, convenient, and reliable testing tools for photovoltaic module manufacturers, power station operators, and third-party testing institutions.
In the future, Jiangsu Jingwei Technology will continue to be driven by technological innovation, focusing on the pain points of quality control in the photovoltaic industry, continuously optimizing EL detection technology, and improving equipment imaging accuracy, detection efficiency, and intelligence level; At the same time, we will deeply cultivate market demand, expand product application scenarios, improve after-sales service systems, provide customers with comprehensive technical support and solutions, help promote the high-quality development of the photovoltaic industry, and inject new momentum into the development of China's clean energy industry.
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