Development of uninterruptible VVVF system

摘要

We have developed an uninterruptible VVVF system, which is suitable for operating an electric motor when power failure occurs. Unlike the CVCF inverter which needs a high current for starting the electric motor, the VVVF inverter can start the electric motor without the need for a high current. Therefore, a smaller system with a lower output capacity can be used, resulting in cost reduction and energy saving.