Against the backdrop of the continuous promotion of the "dual carbon" target and the continuous expansion of photovoltaic power plant scale, how to quickly and accurately evaluate the power generation performance of photovoltaic modules and strings, and timely detect power attenuation, mismatch, and potential faults has become the core pain point for power plant construction acceptance and daily operation and maintenance. Jiangsu Jingwei Technology Co., Ltd. (formerly known as Jiangsu Fuzhun Metrology Technology) has been based in the field of photovoltaic testing for many years. With independent research and development and technological accumulation, it has officially launched the JW-IV11 portable IV tester, which provides a reliable domestic tool for photovoltaic full life cycle performance testing with the comprehensive advantages of high precision, strong portability, and intelligence. Outdoor IV tester
JW-IV11 is a high-performance testing equipment specially designed for precise diagnosis of photovoltaic systems. Its core is used to quickly obtain the complete current voltage (IV) characteristic curve of photovoltaic modules/strings on site, accurately analyze key parameters such as open circuit voltage, short-circuit current, maximum power point, fill factor, etc., and achieve quantitative evaluation of power generation performance. The equipment adopts a high-precision data acquisition system and adaptive electronic load technology, with fast sampling speed and wide dynamic range. It can complete full parameter scanning of 1500V string in a short time, effectively capturing subtle distortions in the IV curve and providing high-quality data foundation for subsequent defect identification.
In terms of functional design, JW-IV11 fully meets the actual needs of photovoltaic field operation and maintenance. Through the built-in intelligent analysis algorithm, the device can automatically analyze the IV curve shape, accurately identify typical problems such as component power attenuation, hot spot effect, occlusion loss, series mismatch, abnormal bypass diode, insulation degradation, and poor joint contact, avoiding the drawbacks of traditional manual inspection relying on experience and high missed detection rate. The instrument supports multiple testing modes such as single component, multi component string, array, etc., and is suitable for different scenarios such as household distributed, industrial and commercial rooftops, mountain/water surface large-scale power stations, etc. It meets the full process testing needs from arrival sampling, installation acceptance to annual audit and fault troubleshooting.
Portability and environmental adaptability are the outstanding highlights of JW-IV11. The whole machine adopts a lightweight industrial design, which is light in weight and small in size. It can be easily packed into a portable case and can be transported and operated by a single person. It is particularly suitable for mobile inspection of remote and complex terrain power stations. The shell has an IP54 protection level and can work stably in a wide temperature range of -20 ℃ to 60 ℃. It has strong dust, moisture, and electromagnetic interference resistance, and is suitable for harsh site conditions such as deserts, coasts, and high altitudes. Equipped with a high brightness outdoor touch screen, visible under strong light, the operation interface is simple and intuitive, supports switching between Chinese and English, and beginners can quickly get started, greatly reducing the threshold for on-site use.
Intelligence and data collaboration capabilities further enhance operational efficiency. JW-IV11 has built-in large capacity storage, which can automatically save historical test data and curve graphs; Support USB one click export, 4G/5G wireless transmission, data can be directly uploaded to the cloud operation and maintenance platform, seamlessly integrated with mainstream power station monitoring systems, achieving automatic archiving of test records, trend analysis, and abnormal warning. Equipped with professional analysis software, it can automatically generate standardized test reports, including parameter comparison, defect diagnosis conclusions, and optimization suggestions, providing scientific basis for operation and maintenance decisions and assisting in the fine management of power plants.
As a benchmark product for domestic photovoltaic testing equipment, JW-IV11 is independently developed in terms of core algorithms and hardware structure, with complete intellectual property rights. It has reached the international level of similar products in key indicators such as testing accuracy, anti-interference ability, and environmental adaptability, and has higher cost-effectiveness and localized service advantages. Jiangsu Jingwei Technology always adheres to the concept of "technological innovation, quality-oriented, and service-oriented", relying on the research and development and production base of the Suzhou headquarters, to provide customers with one-stop services from equipment selection, technical training to after-sales maintenance, ensuring the long-term stable operation of equipment.
With the transformation of the photovoltaic industry from "scale expansion" to "quality and efficiency improvement", the importance of refined operation and precise testing is increasingly prominent. The Jiangsu Jingwei JW-IV11 portable IV tester, with its comprehensive advantages of high-precision measurement, intelligent diagnosis, strong environmental adaptability, and easy portability, will effectively improve the detection efficiency and fault location accuracy of photovoltaic power plants, reduce operation and maintenance costs, ensure the safe, stable, and efficient operation of the system, and inject strong impetus into the high-quality development of China's photovoltaic industry.
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