In the wave of precision operation and efficient power generation in the photovoltaic industry, accurate evaluation of module performance is the core link to improve the quality and efficiency of power plants. Jiangsu Jingwei Technology Co., Ltd. (formerly known as Jiangsu Fuzhun Metrology) is deeply engaged in the field of photovoltaic testing technology. With self-developed core technology and profound industry accumulation, we have ingeniously created the JW-IV12 portable IV tester. With three core advantages of high-precision measurement, intelligent diagnosis, and lightweight design, it has become a "mobile laboratory" for photovoltaic module performance testing, providing reliable support for the entire process of photovoltaic power plant acceptance, inspection, and fault diagnosis. IV power detector
The IV characteristic curve of photovoltaic modules is an "electrocardiogram" that reflects their power generation performance. The shape of the curve is directly related to the power output, attenuation degree, and potential faults of the module. Traditional IV detection equipment is mostly fixed, bulky, inconvenient to transport, and relies on fixed power sources, making it difficult to adapt to the rapid detection needs of large-scale, multi-point outdoor power stations; However, ordinary portable devices have problems such as insufficient measurement accuracy, weak curve analysis ability, and poor stability in extreme environments, which cannot meet the requirements of high-precision detection scenarios. Jiangsu Jingwei Technology has directly targeted the pain points in the industry, relying on high-frequency sampling technology and adaptive electronic load control technology to develop the JW-IV12 portable IV tester, achieving a perfect integration of portability and high precision, completely breaking down the technical barriers of outdoor high-precision IV detection.
The core competitiveness of JW-IV12 portable IV tester lies in millimeter level precise measurement and full parameter intelligent analysis. The equipment adopts a self-developed high-frequency sampling chip with a sampling rate of up to 100kHz, which can quickly capture the complete IV characteristic curve of the photovoltaic string within 3 seconds. It accurately measures 12 core parameters such as short-circuit current, open circuit voltage, maximum power point voltage/current, maximum power, and fill factor, with a measurement accuracy of ± 0.5%, far exceeding the industry standard for ordinary equipment. At the same time, the built-in AI intelligent diagnostic algorithm can perform multi-dimensional deep analysis on the IV curve, automatically identify six types of hidden faults including component power attenuation, hot spot effect, occlusion loss, series mismatch, bypass diode fault, and abnormal line connection, accurately locate the fault location and label the severity, without the need for manual analysis one by one, and improve detection efficiency by more than 70%.
In terms of portability and outdoor adaptability design, JW-IV12 fully considers complex outdoor work scenarios. The whole machine adopts a lightweight chemical industry grade design, with a body weight of only 6.8kg. It is equipped with a high-strength ABS protective shell and has an IP65 dustproof and waterproof rating, which can resist the invasion of harsh environments such as outdoor dust, rain, high temperature, and low temperature. The equipment is equipped with a high brightness outdoor visual touch screen, which is clearly visible under strong light and supports one click operation. The interface is simple and intuitive, and operation and maintenance personnel can quickly get started without professional training. A single person can complete the entire process of equipment connection, curve measurement, fault diagnosis, and report generation. In addition, equipped with a long-lasting dual lithium battery system, it can work continuously for 8 hours on a single charge, meeting the needs of all day outdoor inspections; Simultaneously supporting external power supply, suitable for long-term duty detection scenarios.
Intelligent data management and multi scenario adaptation capabilities make JW-IV12 a "universal testing tool" for the entire photovoltaic industry chain. The device is equipped with a large capacity storage module, which can store more than 50000 sets of IV curve data and detection reports. It supports local storage, one click export, and 5G cloud data synchronization, making it easy for later traceability analysis, acceptance archiving, and remote collaborative diagnosis. After the inspection is completed, a standardized inspection report can be automatically generated, including IV curve graph, key parameter details, fault diagnosis results, and rectification suggestions. The format is standardized and the content is comprehensive, suitable for scenarios such as power plant acceptance, operation and maintenance records, quality assurance claims, etc. At present, this equipment has been widely used in various scenarios such as photovoltaic module factory quality inspection, power station arrival acceptance, installation quality inspection, regular operation and maintenance inspection, precise troubleshooting, and component life evaluation, covering various photovoltaic projects such as household use, industry and commerce, large-scale ground, and fishery photovoltaic complementarity.
As an innovative enterprise in the field of photovoltaic detection equipment, Jiangsu Jingwei Technology always adheres to the product concept of "precise detection, efficient operation and maintenance, cost reduction and efficiency improvement", and continuously overcomes the technical difficulties of photovoltaic detection based on the actual needs of users. The successful development of the JW-IV12 portable IV tester not only fills the gap in high-precision outdoor IV testing equipment in China, but also replaces imported products with domestically produced and cost-effective products, significantly reducing the testing costs of photovoltaic enterprises and promoting the high-quality development of the photovoltaic industry. In the future, Jiangsu Jingwei Technology will continue to focus on innovation in photovoltaic detection technology, continuously optimize product performance, expand application scenarios, and provide higher quality products and services to safeguard the safe and stable operation of global photovoltaic power plants and maximize power generation benefits.
IV power detector, current voltage power curve detector, outdoor IV tester