With the deepening of the "dual carbon" goal and the large-scale development of the photovoltaic industry, the power generation efficiency and stable operation of photovoltaic power plants have become the core concerns of the industry. The issues of component power attenuation, mismatch faults, and hot spot effects directly affect the power generation and investment return of the power station. Jiangsu Jingwei Technology Co., Ltd. (formerly Jiangsu Fuzhun Metrology Technology Co., Ltd.) is deeply engaged in the field of photovoltaic testing. With self-developed core technology, it has launched the JW-IV11 portable IV tester, which provides core technical support for the full life cycle operation and maintenance of photovoltaic power plants with high-precision detection capabilities, portable design, and intelligent analysis functions, and helps the industry develop with high quality. Outdoor IV tester
The photovoltaic IV characteristic curve is the "core electrocardiogram" that reflects the power generation performance of components and strings. Accurately capturing and analyzing the IV curve is the key to troubleshooting photovoltaic system faults and evaluating power generation efficiency. The JW-IV11 portable IV tester is specially designed for precise diagnosis of photovoltaic systems. It adopts a high-precision data acquisition system and adaptive electronic load technology, which can quickly and accurately measure the complete current voltage (IV) characteristic curve of photovoltaic strings. The measurement range covers 10V~1500V, with a voltage accuracy of 0.1V and a current accuracy of 0.01A. The measurement accuracy is controlled within ± 0.5% ± 0.2V, and it is suitable for over 95% of current photovoltaic panel specifications, meeting the testing needs of mainstream power stations.
In terms of functional design, JW-IV11 focuses on the core pain points of photovoltaic operation and maintenance, achieving multi-dimensional intelligent diagnosis. The device is equipped with an intelligent algorithm analysis module that can automatically analyze the IV curve shape, accurately identify hidden problems such as component power attenuation, hot spot effect, occlusion loss, series mismatch, bypass diode failure, insulation degradation, and connection abnormalities, and solve the problem of traditional detection equipment being "only able to measure and not able to judge". At the same time, it supports STC nominal parameter conversion testing, allowing for one click switching between different specifications of component parameters and automatic calculation of the current power generation efficiency and conversion rate of the solar panel; Equipped with high-precision radiometer and temperature sensor, synchronously collecting environmental data, providing temperature and irradiation compensation for IV curve, ensuring accurate and reliable detection results.
Portability and outdoor adaptability are the core competitiveness of photovoltaic on-site testing equipment. JW-IV11 adopts integrated compact packaging technology, with light weight and small size, and is equipped with a high-strength protective box, making it easy to carry to complex power plant sites such as mountains, deserts, rooftops, etc; Industrial grade protection design (IP54), supports wide temperature operation from -20 ℃ to 60 ℃, and has electromagnetic interference resistance in accordance with IEC 61000 standard. It can operate stably in harsh environments such as sand, dust, high temperature, and humidity. The device is equipped with a high brightness visual interface, which is clearly visible under strong light; Equipped with a bilingual operating system in both Chinese and English, the operation logic is concise, and beginners can quickly get started; Single component/string detection only takes 10 seconds, supports one click data export and barcode scanning, greatly improving operation and maintenance inspection efficiency.
At the level of data management and application, JW-IV11 builds an intelligent system for the entire process of "detection analysis reporting archiving". Built in professional analysis platform, which can automatically compare theoretical parameters, generate in-depth diagnostic reports and optimization suggestions; Supporting 100 meter wireless communication, data can be uploaded in real-time to the cloud operation and maintenance platform, seamlessly integrated with mainstream power station monitoring systems, achieving automatic archiving of test records, abnormal data warning, and helping operation and maintenance personnel remotely control and accurately locate faults. Whether it is the annual performance audit of large-scale ground power stations, distributed photovoltaic acceptance testing, or component production quality sampling and troubleshooting, JW-IV11 can be efficiently adapted to provide reliable guarantees for optimizing the performance and increasing the power generation of photovoltaic power stations.
Jiangsu Jingwei Technology, as a high-tech enterprise in the field of photovoltaic testing, always adheres to the development philosophy of "technological innovation, quality-oriented, and service-oriented". The company relies on the technical accumulation of its core R&D team to continuously cultivate the research and production of photovoltaic testing equipment. Its products cover a full range of photovoltaic operation and maintenance equipment such as IV testing, EL testing, irradiation monitoring, insulation testing, and meteorological collection. It has passed multiple industry certifications and serves thousands of photovoltaic enterprises and power station projects nationwide with Waterdrop Credit. The launch of the JW-IV11 portable IV tester is an important achievement of the company's technological innovation, further improving the photovoltaic detection product matrix and filling some gaps in the domestic high-end portable IV testing equipment.
In the future, Jiangsu Jingwei Technology will continue to focus on the pain points and needs of the photovoltaic industry, increase research and development investment, break through core technology bottlenecks, and launch more high-precision, intelligent, and portable photovoltaic testing equipment; At the same time, we will optimize our service system, provide customized solutions, technical training, and after-sales support to customers, help improve the quality and efficiency of the photovoltaic industry, promote healthy and sustainable development, and contribute to the achievement of China's "dual carbon" goals.
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