On May 29th, propelled by the burgeoning demand for AI computing power and electricity, solid-state transformer (SST) technology has emerged as a new focal point within the power equipment sector. Recently, a number of listed companies have proclaimed their foray into the SST domain. SSTs represent medium-to-high voltage direct-connected power electronic devices. In stark contrast to traditional power frequency transformers, which rely on an 'iron core + winding' configuration to achieve electromagnetic induction, SSTs employ power semiconductor devices to directly establish a high-frequency 'power direct bridge' between the medium-voltage side and the DC low-voltage side. This innovative design obviates the necessity for cumbersome power frequency transformers, multi-stage rectifiers, and filtering devices, thereby streamlining the power transformation process. Since the dawn of this year, the swift advancement of artificial intelligence data centers (AIDC) has garnered substantial attention towards SSTs, which stand as a highly integrated power electronic solution.