东阳光：合作开发全球首个SST智能直流供电系统方案

Core Insights - The announcement of the world's first intelligent DC power supply system based on SST (Solid State Transformer) was made at the 2025 CDCC SUMMIT, showcasing a collaboration between Delta, Meituan, Qinhuai Data, and Dongyangguang [1] - The SST solution integrates multiple layouts from Dongyangguang's supply chain, featuring its self-developed layered foil capacitor group, which breaks through efficiency limits and will first be implemented at the Qinhuai Data industrial park to support Meituan's operations [1] - The acquisition of 100% of Qinhuai Data's China business by Dongyangguang in September 2023 marks a significant step in optimizing industry layout and accelerating AI strategic transformation [1] Industry Challenges and Solutions - The power density of data centers is facing unprecedented challenges as AI applications expand, necessitating a shift from traditional AC distribution systems to more efficient solutions [2] - The SST technology is considered the "holy grail" for next-generation data center power supply, achieving an industry-leading efficiency of 98.5% and a power output of 1MW in just 1 square meter, reducing space requirements by over 50% compared to traditional solutions [2] - The SST system employs a "distributed SST + DC bus" architecture, significantly lowering transmission losses and integrating energy storage units for seamless switching between power sources [2] Technical Innovations - Dongyangguang's layered foil capacitor is crucial for stabilizing the input-side DC bus voltage in the SST solution, enhancing the system's performance [3] - Compared to traditional capacitors, Dongyangguang's layered foil capacitors have improved volumetric efficiency by over 40% and capacity density by over 30% [3] - The environmental benefits of this technology are notable, with a 40% reduction in aluminum consumption compared to traditional capacitors, aligning with the "dual carbon" strategy [3] Market Opportunities - The integration of Qinhuai Data and Dongyangguang's core components is expected to create a unique competitive advantage in the digital economy, facilitating the development of next-generation data centers with lower PUE and higher power density [4][5] - The global market for SST in AI data centers is projected to reach 100GW by 2030, with the layered foil capacitor market potentially reaching 2 billion yuan [5] - Dongyangguang's high-capacity layered foil capacitors are becoming the preferred solution for AI server power supply units, addressing the increasing demand in the AI computing market [5] Strategic Developments - The capital operation to integrate Qinhuai Data and the technological advancements in layered foil capacitors are helping Dongyangguang build a comprehensive ecosystem for AI energy solutions [6] - The ongoing projects with Qinhuai Data and Meituan are expected to lead to a re-evaluation of Dongyangguang's value in the AI infrastructure sector [6]