Research on three level high power four quadrant medium voltage inverter based on IGCT

In view of the current problems of complex structure and small capacity of the four quadrant medium voltage frequency converter, this paper puts forward the topology of the three - level, high power, and the four - quadrant medium voltage inverter based on IGCT. Based on the study of the characteristics of IGCT switch, the topology and control technology of three levels PWM rectifier are studied. At the same time, the decentralized coordinated control technology is studied. In this paper, the simulation and experiment show that based on the IGCT three level four quadrant medium voltage inverter has a high capacity of 10MVA.