Inverters are known as the heart of photovoltaic power plants, and their conversion efficiency, power factor, harmonics, voltage and current stability directly determine the overall power generation revenue of the power plant. Throughout the entire lifecycle of photovoltaic projects, professional testing equipment is required to obtain real operational data for inverter acceptance, annual performance verification, fault diagnosis, and system PR value evaluation. In the past, many inverter detection methods required equipment shutdown and power outage, which directly caused loss of power generation. Some simple testing tools have single functions and cannot synchronously collect irradiation and temperature environmental parameters. It is difficult to distinguish whether it is inverter performance degradation or output fluctuations caused by changes in lighting and temperature environment. The reference value of test results is limited. Suzhou Laikesi LAILX has developed the LX-PE93 inverter comprehensive tester to address the pain points of on-site inspection of photovoltaic power plant inverters. It supports grid connected online testing without power outages and provides one-stop calculation of inverter AC/DC performance, conversion efficiency, and PR system efficiency, providing complete data support for power plant acceptance, fault diagnosis, and efficiency evaluation. On site efficiency analyzer for photovoltaic power plants

The LX-PE93 inverter comprehensive tester is compatible with mainstream 1500V photovoltaic systems and is compatible with string inverters and centralized inverters. It also supports performance testing of combiner boxes. The equipment uses non-contact high-precision current clamp sampling, and during on-site testing, there is no need to disconnect cables. The power station maintains a normal grid connected power generation state and can real-time collect key electrical parameters such as DC side and AC side multiple voltages, currents, active and reactive power, power factor, frequency, etc., without causing power generation losses due to detection work, solving the industry pain point of traditional detection mode that must be shut down. The integrated photovoltaic environmental monitoring unit of the whole machine can synchronously collect solar irradiance, component temperature, and environmental temperature, correspond electrical operation data with on-site meteorological conditions one by one, automatically calculate the actual conversion efficiency of the inverter, calculate the PR performance ratio of the power station system, effectively eliminate meteorological fluctuations, objectively evaluate the true working performance of the inverter, and distinguish between equipment failures and changes in power generation caused by weather factors.

The instrument host integrates a high-definition touch display screen, with clear readings in outdoor strong light environments. Multiple channels are synchronously collected, and multiple sets of data are synchronously displayed without the need to repeatedly switch pages to view different measurement points. The equipment has large capacity local storage and can continuously record operating data for a long time. It can be used for short-term performance sampling or deployed on-site for long-term continuous monitoring, recording the complete operating curve for the whole day and mastering the performance of the inverter under different irradiation conditions. The device supports network communication and has remote synchronization control capability. Technical personnel can remotely view test data and conduct synchronous comparison tests on multiple devices. The completed test data can be exported locally or uploaded through the network. It is equipped with professional data analysis software to automatically generate test reports and complete efficiency curve drawing, greatly reducing the workload of report organization in the later stage. The protective chassis is sturdy, waterproof, and dustproof, fully suitable for complex outdoor power plant sites. Whether it is a large-scale ground power plant or a distributed industrial and commercial rooftop project, it can stably carry out testing work.

The LX-PE93 inverter comprehensive tester has a wide range of application scenarios. During the construction and acceptance stage of new projects, it is used for inverter arrival inspection, pre grid performance verification, and confirmation that equipment indicators meet the requirements of bidding and design; In the operation and maintenance of existing power stations, efficiency checks are carried out for stations that do not meet the power generation standards to determine whether the inverter efficiency is declining or if there is a fault in the front-end component array, providing data basis for operation and maintenance rectification; Third party testing institutions can use this equipment to complete power plant performance evaluation and technical appraisal; Research institutions can also use it for empirical comparative experiments of inverters. As a domestically developed professional testing instrument, LX-PE93 breaks the price barrier of imported equipment. Both software and hardware are locally adapted, and the operation interface is fully in Chinese, in line with domestic testing standards. The manufacturer provides complete technical services, including operation training, firmware iteration and upgrade, and fast after-sales response. The domestic photovoltaic industry has shifted from high-speed construction to improving quality and efficiency, and the asset returns of power plants are increasingly valued. As the core equipment for energy conversion, the demand for performance testing of inverters continues to grow. The LAILX LX-PE93 inverter comprehensive tester, with its core advantages of non-stop online testing, multi parameter integrated collection, and intelligent data analysis, helps photovoltaic power plants achieve refined efficiency management, tap into the potential of existing power plants, and promote high-quality and sustainable development of the photovoltaic industry.

Photovoltaic power plant on-site efficiency analyzer, inverter comprehensive analyzer, inverter performance testing