Development of an Active Front End Highly Efficient and Large Capacity Medium Voltage Inverter Drive

The growing demand of industrial requirements is driven by higher capacity and higher reliability drives. The development of high-power rating drives with high reliable operation plays a key role in this aspect. The higher rating diode bridge drives are accompanied by issues like larger footprints, harmonic loss and unable to operate in unity power factor mode. This impacts the efficiency of the drive. The application of a highly reliable and efficient active front end large capacity medium voltage Active Front End (AFE) drive is discussed in this paper. The design and test methods are developed to comply with the UL and CSA standards (UL 347A and CSA C22.2 No. 274-17). This paper introduces a higher capacity 2770kVA AFE, higher efficiency regenerative medium voltage source converter development.