The dual carbon strategy continues to advance, and the photovoltaic industry has entered a new stage of high-power, high-voltage, and refined operation. From component factory quality inspection, power station grid connection acceptance to inventory power station fault diagnosis, accurately obtaining component IV characteristic curves and determining power generation performance has become an essential requirement for the industry. Traditional large-scale IV testing equipment has a large volume and can only be used indoors. Ordinary handheld testers have insufficient range and low accuracy, and cannot adapt to complex outdoor scenarios such as mountains, rooftops, and water-based photovoltaics, which restricts the quality control efficiency of the entire photovoltaic industry chain. Jiangsu Jingwei Technology has been deeply involved in the research and development of photovoltaic precision testing equipment for more than ten years. Relying on independent circuit algorithms and core technologies of capacitive loads, it has launched the JW-IV12 portable IV tester, which has four core advantages: lightweight body, wide range coverage, millisecond level high-speed acquisition, and intelligent data correction. It provides one-stop solutions for outdoor component performance testing pain points, and provides standardized high-precision testing solutions for photovoltaic manufacturing, engineering construction, third-party testing, and power station operation and maintenance. Current voltage power curve detector
JW-IV12 has completed a comprehensive upgrade in hardware architecture, breaking the short range of traditional portable devices. The voltage testing range is 0-1500V and the current is 0-25A. It is fully compatible with new high-power components such as TOPCon, HJT, perovskite, and 1500V high-voltage string detection, covering a full range of photovoltaic systems for household distributed, industrial and commercial rooftops, and large ground power stations. The equipment is equipped with a self-developed high-precision dynamic capacitive load module and adopts a microsecond level multi-point synchronous acquisition algorithm. It can generate I-V and P-V hyperbolas within 5 seconds of a single detection, accurately analyze more than ten core parameters such as open circuit voltage, short-circuit current, maximum power, fill factor, conversion efficiency, etc. The curve analysis resolution reaches the top level in the industry, and can capture the curve distortion caused by slight attenuation, hidden cracks, and virtual connections of components. It can accurately distinguish A-grade, B-grade, and faulty components, and the detection results are benchmarked against large steady-state IV equipment in the laboratory, fully meeting the requirements of GB/T standard acceptance and certification.
For complex outdoor working conditions, the JW-IV12 is equipped with a multi-dimensional intelligent environment compensation system, which can wirelessly link with the JW-F04 portable irradiance meter to synchronously collect irradiance, component backplane temperature, and environmental temperature and humidity. It automatically completes STC standard working condition power conversion, completely avoiding the double data error caused by manual recording and separate measurement, and solving the problem of data distortion in cloudy and weak light environments in the morning and evening. The device supports a dedicated measurement mode for double-sided components, eliminating back panel reflection interference through adaptive irradiation algorithms, accurately measuring the actual power generation gain of double-sided components, and adapting to the current mainstream batch testing needs of double-sided glass components. The operation end is equipped with a 4.7-inch outdoor high brightness touch screen, which is clear and visible under strong light. The fully Chinese visual operation interface allows for one click start of automatic scanning, automatic storage, and one click export of reports. The operation and maintenance personnel can independently complete the entire set of tests without professional training, and have zero foundation operation.
The portable design directly addresses the core pain points of outdoor operations, with an integrated whole machine. The main unit weighs only 4.1kg and is equipped with a shockproof portable protective box. It can be carried and transported by a single person without air transportation restrictions, and has strong adaptability for cross regional third-party flow detection. The body adopts an IP64 industrial three proof shell, which is dustproof, splash proof, and resistant to high and low temperatures. It can operate stably in extreme environments from -30 ℃ to 70 ℃, and is not affected by mountain dust and outdoor testing during rainy seasons. Equipped with a large capacity and safe lithium battery, it can continuously perform 200 sets of string tests when fully charged. It can be used for round the clock inspections in remote areas without access to external power sources; Support Bluetooth and Wi Fi wireless data transmission, real-time synchronization of detection data with mobile phones and computer terminals, SD card local storage can retain 100000 sets of detection records, matched with dedicated data analysis software to automatically generate standardized detection reports, support barcode binding component information, and achieve full lifecycle data traceability management of components.
The ability to adapt to the entire industry chain scenario makes JW-IV12 highly competitive in the market. Component manufacturing enterprises can use it for product sampling and performance retesting after aging on the production line, quickly eliminating inefficient defective components and improving the factory yield rate; Photovoltaic engineering units are used for project completion and grid connection acceptance, batch verification of the overall power generation performance of the array, and avoidance of rework during acceptance; Operation and maintenance enterprises use annual inspections of existing power stations to quickly locate inefficient fault clusters, optimize operation and maintenance plans, and improve the overall power generation of the power station; Research institutions and third-party testing agencies can serve as core equipment for outdoor experiments and metrology evidence collection, providing authoritative and traceable testing data.
As a benchmark enterprise for domestic photovoltaic testing instruments, Jiangsu Jingwei has always adhered to independent innovation, with all core software and hardware independently researched and produced, abandoning the assembly and OEM model. The quality control system covers the entire process of component selection, whole machine debugging, and high and low temperature aging. The landing of JW-IV12 fills the gap in lightweight and high-precision of domestic high-voltage portable IV detection equipment, breaks down the price barrier of imported equipment, and significantly reduces procurement and after-sales costs under the same performance. In the future, Jiangsu Jingwei will continue to iterate detection algorithms, expand AI intelligent curve fault recognition functions, continuously launch detection equipment adapted to the new generation of photovoltaic technology, and use domestically produced precision instruments to assist in the high-quality and low-cost development of the photovoltaic industry, providing solid detection technology support for the implementation of the dual carbon target.
Current voltage power curve detector, portable IV tester, portable solar cell tester
