Minsheng Securities·2025-07-23 12:00Investment Rating - The report suggests a positive investment outlook for the SST (Solid State Transformer) solution, highlighting its comprehensive advantages in the data center sector [4][70]. Core Insights - The global AI market is projected to grow from 1,187.9 billion RMB in 2023 to 11,455.4 billion RMB by 2030, with a CAGR exceeding 35% [5][14]. - The SST solution is particularly suitable for microgrid DC power scenarios, enabling direct conversion from grid power to 800V DC supply, addressing various challenges in data center power supply [5][47]. - The report emphasizes the importance of high-frequency transformers and power electronic devices in the SST solution, recommending key companies in these sectors for investment [5][70]. Summary by Sections 1. Industry Status and Challenges - The demand for full DC systems is increasing due to the rising proportion of DC devices in data centers, necessitating a compatible full DC power supply architecture [21]. - Traditional 54V power supply systems are reaching their limits, prompting the need for higher voltage levels, such as the 800V HVDC architecture proposed by leading companies [28]. - The area occupied by power distribution systems is increasing as power density in data centers rises, with projections indicating that power distribution systems may occupy equal space to IT equipment in high-density setups [30] [31]. 2. Advantages of SST Solution - The SST solution offers modularity and high efficiency, with the ability to directly convert high voltage AC to low voltage DC, significantly reducing space requirements and improving energy efficiency [44][63]. - SST technology utilizes advanced semiconductor devices and high-frequency transformers, allowing for active control of power quality and rapid fault detection [55][57]. - The SST solution has already been implemented in benchmark data center projects, demonstrating its potential for widespread adoption in the industry [65]. 3. Investment Recommendations - The report recommends focusing on companies involved in high-frequency transformers, power electronic devices, and advanced magnetic materials, as they are expected to benefit from the growth of the SST market [70].