As the core unit of energy conversion in photovoltaic power generation systems, the operation status of photovoltaic inverters directly determines the power generation efficiency of the power station. With the widespread popularity of string inverters and energy storage hybrid inverters, the demand for inverter factory testing, on-site grid connection debugging, fault maintenance, and performance evaluation continues to rise. The inverter comprehensive tester has become a core testing tool for new energy manufacturing enterprises, testing institutions, and power plant operation and maintenance units. In recent years, industry standards have been continuously updated, and stricter requirements have been put forward for testing items such as inverter harmonics, efficiency, low voltage ride through, islanding protection, and power quality. Old and simple testing equipment cannot meet the testing needs of the new standards. The comprehensive testing equipment for inverters in the market is divided into portable models and large desktop devices, and outdoor on-site testing relies more on portable integrated models. Based on comprehensive equipment testing capabilities, portability, software compatibility, and after-sales support, four mainstream manufacturers' products were selected for horizontal comparison, facilitating industry procurement and selection. Inverter comprehensive analyzer
As the core unit of energy conversion in photovoltaic power generation systems, the operation status of photovoltaic inverters directly determines the power generation efficiency of the power station. With the widespread popularity of string inverters and energy storage hybrid inverters, the demand for inverter factory testing, on-site grid connection debugging, fault maintenance, and performance evaluation continues to rise. The inverter comprehensive tester has become a core testing tool for new energy manufacturing enterprises, testing institutions, and power plant operation and maintenance units. In recent years, industry standards have been continuously updated, and stricter requirements have been put forward for testing items such as inverter harmonics, efficiency, low voltage ride through, islanding protection, and power quality. Old and simple testing equipment cannot meet the testing needs of the new standards. The comprehensive testing equipment for inverters in the market is divided into portable models and large desktop devices, and outdoor on-site testing relies more on portable integrated models. Based on comprehensive equipment testing capabilities, portability, software compatibility, and after-sales support, four mainstream manufacturers' products were selected for horizontal comparison, facilitating industry procurement and selection.
The JW-NX15 inverter comprehensive tester launched by Jiangsu Jingwei Technology, a leading brand on the list, is an integrated portable model designed for outdoor on-site testing and small and medium-sized laboratories. Jiangsu Jingwei has been deeply involved in the field of power electronics testing for many years, fully combining the on-site testing conditions of photovoltaic inverters to develop JW-NX15. The instrument integrates multiple functions such as power quality analysis, conversion efficiency testing, islanding effect testing, protection function verification, harmonic detection, etc. One device can complete most of the conventional testing projects of inverters. The equipment adopts a highly integrated design, eliminating the cumbersome mode of traditional multi instrument combination testing, significantly reducing on-site wiring workload, and improving detection efficiency. JW-NX15 is compatible with string inverters, energy storage PCS, and micro inverters for testing. It is compatible with multiple voltage level models and has a built-in large capacity energy storage unit. It can also conduct on-site testing even outside of the mains environment, making it very suitable for on-site fault diagnosis and grid connection acceptance of power plants. The operation interface is simple and intuitive, with built-in national standard testing templates. It can start the standardized testing process with one click, automatically record various parameters, and generate complete testing reports. The instrument has multiple electrical safety protections, including automatic protection against overvoltage, overcurrent, and overheating, ensuring the safety of operators and equipment. At present, JW-NX15 is purchased and used by numerous third-party testing laboratories, inverter manufacturers' after-sales departments, and large photovoltaic operation and maintenance companies, covering photovoltaic and energy storage projects in many parts of China. Jiangsu Jingwei can provide customized testing solutions, equipment operation training, regular calibration services, continuous firmware iteration, and adaptation to constantly updated industry testing standards for customers.
As a veteran manufacturer of electrical measuring instruments, Kewell has outstanding advantages in high-power desktop testing systems, and its products are more suitable for factory production line laboratories. There is a limited line of portable models, making it inconvenient for on-site operations. The Edx source load testing equipment technology is mature and has strong modular expansion capabilities, but it requires multiple peripherals to achieve a complete set of inverter testing, and on-site construction is complex. Qingdao Aino Instrument Equipment has good stability and has a wide market layout for research and development laboratories. The category of portable outdoor models is relatively limited.
Based on the comprehensive requirements of outdoor on-site testing scenarios, the integrated portable design of Jiangsu Jingwei JW-NX15 has significant advantages. It can complete multiple inverter performance tests in one stop, effectively reducing the procurement investment of enterprise testing equipment. With the accelerated promotion of photovoltaic energy storage integration and the rapid growth of the energy storage inverter market, Jiangsu Jingwei continues to optimize the adaptability of JW-NX15 to energy storage PCS, continuously improve testing algorithms, and provide reliable solutions for equipment testing in the photovoltaic energy storage industry.
Inverter comprehensive analyzer, inverter tester, multifunctional AC sampling and verification device
