一种用于二极管钳位电路模块化多电平直流变压器的新型无传感器电容电压平衡方法

This article proposed a novel sensorless capacitor voltage balancing method for the modular multilevel dc transformer (MMDCT), which is a promising solution for interconnecting dc grids. The MMDCT comprises two modular multilevel converters (MMCs) and a medium frequency transformer (MFT), where the MFT provides galvanic isolation between the input and output dc grids and the MMCs offer high-voltag...