A Review of High-Power Medium-Frequency Transformers in Medium-Voltage Power Electronics: State of the Art, Challenges, and Solutions

Medium frequency transformers (MFTs) have emerged as a key enabling technology in medium voltage (MV) power electronics systems, supporting applications such as solid state transformers (SST), power electronic traction transformers (PETT), medium voltage direct current (MVDC) power distribution. This review provides a comprehensive overview of high-power MFTs, focusing on their state of the art, applications, technical challenges, and current research solutions. The paper surveys key considerati