Against the backdrop of the sustained high-speed development of the domestic new energy industry, the construction scale of photovoltaic power stations continues to expand. From large-scale ground photovoltaic bases to industrial and commercial rooftops, mountain photovoltaics, and household distributed projects, quality control and performance testing throughout the entire life cycle of power stations have become a necessity in the industry. The actual power generation performance of photovoltaic modules and string directly determines the overall revenue of the power station. As the core means of evaluating the true output capability of photovoltaic modules, IV curve testing is widely used in project acceptance, on-site operation and maintenance, incoming material inspection, fault diagnosis and other aspects. The market demand for portable, high-precision, and adaptable IV testing equipment for complex outdoor conditions continues to rise. LAILX New Energy Technology Co., Ltd. (LAILX) has been based in the photovoltaic testing industry for many years. With the accumulation of independent research and development technology, it has launched the LX-PV32 portable IV tester, which faces the pain points of traditional testing equipment such as bulky volume, complex operation, and poor outdoor adaptability. LAILX provides efficient and reliable on-site testing solutions for various types of photovoltaic projects, and helps promote the high-quality development of the photovoltaic industry. Outdoor IV tester

Traditional IV detection equipment is mostly bulky in size, requiring a lot of manpower for equipment transportation and deployment. Faced with inconvenient transportation scenarios such as mountains and rooftops, the difficulty of equipment transportation has greatly increased. Some equipment also has problems such as slow testing response and large data deviation under non-standard working conditions, making it difficult to meet the detection needs of the current large-scale popularization of 1500V high-voltage photovoltaic systems. The LX-PV32 portable IV tester adopts an integrated box type portable structure, with a large capacity lithium battery integrated into the whole machine. It can complete a complete set of outdoor testing operations without the need for external mains power. It is equipped with a 6.5-inch visible color touch screen under sunlight, and the dual operation mode of touch screen and buttons takes into account the usage habits of different operators. A single person can carry the equipment to various testing points, and after opening the box, it can be quickly wired to start testing, greatly reducing on-site preparation time and improving the testing efficiency of outdoor power stations. This device supports 1500VDC high-voltage photovoltaic string testing and can collect a complete set of key parameters such as I-V curve, P-V curve, open circuit voltage, short-circuit current, peak power, fill factor, component conversion efficiency, series parallel resistance, etc. It is also equipped with a wireless irradiance probe and temperature sensor to synchronously collect solar irradiance, ambient temperature, and solar panel temperature, and complete STC standard condition conversion in real time according to the on-site environment. Even if outdoor lighting conditions continue to change, it can still output standardized and comparable test results, eliminate data interference caused by environmental factors, and ensure the rigor and reliability of detection reports.

In terms of practical operational efficiency, the LX-PV32 can complete a complete scan test of a string in just over ten seconds. The device's local storage can store more than two thousand sets of test waveforms, and supports quick export of all raw data from SD cards and USB drives. Equipped with professional data analysis software on the PC side, it can complete curve playback, data comparison, component level determination, and one click generation of testing reports, adapting to the digital archiving needs of third-party testing agencies, EPC engineering enterprises, and power station operation and maintenance units. The wireless irradiation probe supports a maximum wireless communication distance of 100 meters. During testing, the probe can be placed on the same plane as the tested component, without the need to drag long-distance cables, avoiding practical problems such as complicated on-site wiring and cable loss, greatly optimizing the outdoor work experience of Suzhou Laikesi The device has a wide range of adaptation scenarios, which can be used for grid connection acceptance of new photovoltaic power plants, sampling and testing of on-site components, and troubleshooting of incoming power failure issues; It can also be used for maintenance and inspection of existing power stations, locating power attenuation clusters, distinguishing power generation losses caused by component aging, obstruction, and faults; At the same time, it can adapt to scientific research experiments, component laboratory field experiments, and is compatible with testing tasks for single component and string systems.

Domestication and independent controllability are the competitive advantages of LX-PV32 that cannot be ignored. The core hardware and algorithms of the equipment are all independently developed, avoiding the dilemma of long supply cycles and high maintenance costs of imported equipment. Suzhou LAILX has established a localized technical service team that can provide customers with full cycle services such as on-site training, technical guidance, equipment calibration, and rapid response to faults. Equipment problems can be quickly repaired to avoid delays in power plant testing progress due to instrument failures. With the continuous iteration of photovoltaic power plants towards large capacity and high voltage, the workload of on-site inspection continues to rise, and the traditional manual sampling mode urgently needs intelligent portable instruments to empower it. The LX-PV32 portable IV tester combines the three core characteristics of high precision, strong portability, and high stability to solve the IV performance testing problems in various outdoor complex scenarios. It helps practitioners quickly grasp the true performance of photovoltaic modules, accurately locate performance shortcomings, and reduce power generation losses in power plants. In the future, LAILX will continue to deeply cultivate the photovoltaic testing track, iterate instrument algorithms and hardware performance, and continuously output domestic strength for the improvement and efficiency of the domestic photovoltaic industry.

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