NEH series is a bidirectional, dual-channel power processing system that has been specifically designed for high-power secondary battery pack testing and drive profile simulation. It is capable of providing millisecond power characteristic curve output with remarkable accuracy and flexibility. Furthermore, it facilitates battery simulation tests to be conducted in accordance with IEC, SAE, GB and other standards, thus providing comprehensive electrical performance tests for EV/HEV power batteries and furnishing test data for battery and EV manufacturers or laboratories to assess the overall quality of batteries.
Utilizing SiC technology and boasting a battery energy return function, this system offers an impressive efficiency of charging and discharging of over 96.1%, surpassing that of conventional IGBT technology devices (92% efficiency). Moreover, it reduces the heat generated during operation by up to 50% so that it diminishes the expenditure on electricity for air conditioning and prolongs the service life of the equipment electronics, while mitigating equipment exhaust noise and improving the comfort of site personnel.
Features ultra-high voltage accuracy of up to 0.01%, current staging accuracy of up to 0.03%, and automated switching of current staging with a response time of less than 4 milliseconds and a switching time of less than 9 milliseconds. It is capable of supporting a 20 millisecond road spectrum to satisfy a variety of real-time dynamic tests.