A Modular Medium Voltage IGCT Gate Driver Supply

This paper introduces a novel concept for use as a medium voltage IGCT gate driver supply. The concept makes use of an integrated magnetic structure to transmit orthogonal signals for power and control, and a multiple output LCC converter built around it. The concept is modular and fault tolerant. It can convert the dc bus voltage in an IGCT-based system into multiple independently isolated outputs, where normally two converter systems are used. This contributes to efficiency and cost effectiveness. In addition to introducing the concept, a number of design parameters are optimized for a number of cases and simulations are performed, demonstrating its potential. Targeted applications are IGCT-based modular multilevel converters.