昨天的文章中，我们讲到美国的电力问题和固态变压器（SST），也许是赶巧了，今天市 场上电力和SST的表现都还不错。这篇文章，我们来看下SST目前的进展以及国内外相关 的厂商布局。 AI数据中心的下半场：电力和节能 SST进展及基础情况 在国内，四方股份、中国西电、金盘科技等传统电力设备厂商，以及部分AI服务器电源企业和光储 新能源企业，也开始布局SST技术。这些企业结合自身技术优势，逐步向数据中心和新能源领域扩 展，探索SST技术的商业化应用。四方股份依托中科院背景，技术产品优势明显，目前已开始与海外 大厂尝试对接，民企业务加速出海。科华数据在液冷及服务器电源领域与英伟达及其他ASIC大厂密 切合作，其SST产品已在国内成功完成挂网测试，进入英伟达SST供应链只是时间问题。 金盘科技 金盘科技在2025年上半年表现稳健，机电业务保持稳定增长。国内特高压领域进展显著，江东南、 粤港澳等特高压直流项目已陆续开工，预计更多项目将在近期启动。这将推动特高压设备进入新一 轮招标高峰，金盘科技作为行业龙头有望显著受益。 在海外市场，金盘科技表现亮眼，上半年境外收入同比增长64%，成功中标马来西亚数据中心变电 站项目，进一 ...

当大家依然在关注光模块、PCB的时候，我们十一假期期间就一直在提电力了，也写过一篇 分析： 如果电力是AI发展的瓶颈，中国是否在领先？ 这段时间我们也经常刷到OpenAI的各种新闻，OpenAI跟AMD、英伟达、甲骨文和 CoreWeave 的交易将 在未来十年内为 OpenAI 提供超过 20GW的计算能力，约等于 20 座核反应堆的电力，而美国目前的电 力情况不容乐观，所以我们认为：目前AI数据中心的下半场，电力和节能是发展的主线。 AI需要的电力与日俱增 从需求端分析，人工智能数据中心的指数级扩张将推动电力需求快速增长。根据Rand的数据预测，到 2030 年，单个地点的 AIDC 训练需求所需电力可能达到 8 吉瓦（GW），这一规模大致相当于 8 座大型 核反应堆的总装机容量；与此同时，数字货币挖矿等领域的电力需求也在持续增长，进一步加剧了电力 消耗压力。 再看供给端，美国现有地面电力基础设施已难以在短期内适配这种爆发式增长的需求。以美国数据中心 核心聚集区 ， 弗吉尼亚州北部为例，当地部分数据中心正面临长达 7 年的电力供应排队等待问题；甚 至像 xAI 这样的企业，也因电力供应等待周期过长，不得不 ...

点击 最 下方 "在看"和" "并分享，"关注"材料汇 添加 小编微信 ，遇见 志同道合 的你 正文 引言 在这场静默的危机背后，作为第三代半导体材料的 "碳化硅" ，正从两个核心战场掀起一场深刻的变革： 在"供电"战场 ，它化身高效能的 功率芯片 ，潜入服务器电源，将电能转换效率推升至98%的极致，解决了AI集群 "吃得多、浪费多" 的难题。 在"散热"战场 ，它变身为 封装基板 ， 直接为GPU"筑基"，用其卓越的导热性能，将芯片产生的巨量热能快速导出，解决了 "热量排不出、性能上不去" 的瓶颈。 这份报告将为您深度解析，碳化硅如何从 芯片封装到数据中心供电 ，贯穿AI算力核心，成为赋能未来AI产业不可或缺的核心材料变革。这不仅是技术的 迭代，更是一场关乎未来算力成本与可持续性的关键博弈。 当我们在谈论ChatGPT、Sora，以及不断刷新记录的AI模型时，我们谈论的其实是算力的"饕餮盛宴"。然而，支撑这场盛宴的AI服务器，正面临一场空前 的能源与散热危机——单机柜功率突破百千瓦，芯片功耗直逼千瓦大关，传统的技术路径已然触顶。 CoWoS产能与碳化硅需求的倍增关系 ：报告指出若完全替代，碳化硅需求是CoW ...

9月23日-27日，台达以"AI赋新 GI永续"为主题，亮相第二十五届中国国际工业博览会(以下简称"工博 会")，这已是这家全球电源管理及散热管理领导厂商，连续十余年参加在上海举办的这一工业盛会。 "我们一直非常重视工博会，基本从不缺席，每次都希望争取到最好的位置，甚至在疫情期间展位都没 有缩水，"台达首席品牌官郭珊珊近日接受记者专访时表示，而这十多年来布展内容的变化，也可以清 晰的看到公司在业务转型和品牌提升方面所做的努力。 台达首席品牌官郭珊珊于工博会台达展台 展品反映业务变迁 在本届工博会上，台达通过AI数字化工厂、AI数据中心、智慧工业场域、智慧微电网等场景，集中展 示了创新研发的绿色产品及解决方案。在台达展位上，旋盖数字化产线、液-液数据中心解决方案、固 态变压器（SST）等展品吸引了大量参观者驻足。 "今年我们的展台上可以看到很多解决方案和真实应用场景的展示，这在最早期时的展台是没有的，"郭 珊珊告诉记者，"这也反映了公司业务范围和能力的提升，比如整合数字孪生软件平台实现虚实结合， 就是我们新的业务能力的展现。" 其中，首次亮相的台达固态变压器（SST）以新一代电力电子核心技术脱颖而出，荣获"CI ...

AIDC 投资机会展望：算力需求持续加码，重视技术迭代契 机 20250926 摘要 OpenAI 与微软合作建设 G1 瓦级数据中心，预示算力需求激增，IDC 建设规模或超预期，单 GW 算力成本约 500 亿美元，10GW 项目投资 规模或达 5,000 亿美元，与 OpenAI 的未来展望相符。 液冷、电源侧 HVDC 和 PSU 等环节预计将分别带来 700 亿、150 亿及 200 亿市场空间，市场规模快速增长及新技术发展将推动内资企业加快 出海步伐，有望在 2026 年实现初步海外订单，2027 年加速放量。 阿里巴巴计划未来三年投入 3,800 亿元建设 AI 基础设施，并将在 2032 年前将全球数据中心能耗提升至现有水平的 10 倍，同时与英伟达开展 Physical AI 合作，加速智能应用开发，并扩建全球数据中心。 腾讯、阿里、百度通过发行票据进行融资，用于新建应用领域，字节跳 动贷款百亿美元扩张，腾讯确立国际化战略，字节跳动旗下火山引擎输 出全球化技术方案，加速布局海外云技术设施。 英伟达提出的微通道冷板技术（MLCP）通过微小通道直接输送冷却液 到芯片内部，实现更高效散热，单价是普通 ...

来源：上海证券报·中国证券网 "呼应报告的重要观察，台达将致力以科技创新协助可持续AI的推进，包括打造智慧微电网以及为边缘计算设计的AI数据中心等。"台达首席品牌官郭珊珊对 上海证券报记者表示。 在本届工博会上，台达以"AI赋新 GI永续"为主题亮相，通过AI数字化工厂、智慧工业场域、智慧微电网、AI数据中心等场景，集中展示创新研发的绿色产 品及解决方案。其中，旋盖数字化产线、液-液数据中心解决方案、固态变压器（SST）智慧电源等展品备受关注。 宋薇萍摄 首次亮相的台达固态变压器（SST）以新一代电力电子核心技术脱颖而出，荣获"CIIF工业自动化奖"，成为展区里的焦点展品。展台工作人员对记者介绍， 该展品通过碳化硅(SiC)高频电能转换替代传统电磁变换，实现10kV中压电网直降800V (可调范围200-1000Vdc)直流输出，电源效率突破性提升能效至 98%+，设备体积缩小50%以上，其高模组化、易部署设计可以轻松扩展和配置，以满足不同的电力需求，使维护、更换升级和针对特定应用的适应变得更 加容易。 上证报中国证券网讯（记者 宋薇萍）正在举行的第二十五届中国国际工业博览会(简称"工博会")上，台达通过呈现 ...

AI"探电"：SST 重塑未来 AIDC 供电架构 20250923 摘要 固态变压器（SST）凭借高效率（全链路效率提升 4-5%）、体积小 （占地面积为传统方案的 1/3 至 1/2）、灵活性高和预制化设计等优势， 有望成为下一代数据中心供电架构的优选方案，尤其是在高密度、空间 紧张的数据中心。 北美市场变压器供应紧张，单位成本自 2019 年来上升超 77%，交付周 期长达 46 周，SST 凭借其快速部署特性，更适配北美 AIDC 建设需求， 有望成为下一代供电方案。 国内政策利好频出，如绿电直连政策和新型电力系统建设试点，强调算 力与电力协同及绿色算力，为数据中心增效减碳提供机会，SST 高度适 配绿电直连和源网荷储一体化系统。 尽管 SST 初始投资成本较高，但通过精简中间环节和紧凑设计减少设备 和线缆使用量及施工量，全生命周期成本具备优势，且随着技术成熟， 降本空间大，投资竞争力强。 典型 SST 采用三级能量转换结构，包括 ACDC 输入级、高频 DCDC 隔 离级和输出级。主流拓扑方案基于 ISOP 架构，即输入端串联输出端并 联，设计成熟且拓展方便。 Q&A 固态变压器（SST）在数据中心 ...

Core Viewpoint - The construction of AI computing power centers (AIDC) is on the rise, and solid-state transformers (SST) are expected to become the preferred solution for future data center power supply architectures due to their high efficiency, compact size, flexibility, and prefabricated design [2][6]. Group 1: SST Technology and Market Potential - SST is anticipated to become the optimal technology route as AI power supply architecture upgrades to 800V HVDC, with major cloud providers increasing capital expenditure and accelerating AIDC construction [2][10]. - SST offers significant performance advantages over traditional UPS supply chains, including over 3 percentage points improvement in efficiency, 60% reduction in footprint, and 75% decrease in installation and debugging time [3][16]. - The initial investment cost of SST is currently high, but there is substantial potential for cost reduction as core components like power semiconductor devices and amorphous nano-crystalline materials mature [3][12]. Group 2: Industry Landscape and Competitive Positioning - Major global AIDC players like Eaton and Delta have early reserves in SST solutions, while domestic companies are entering the market from traditional power equipment, AI power supply, and solar storage sectors [3][27]. - Companies with deep understanding of power electronics, high-frequency transformers, and mid-voltage processing, along with rich experience in data center projects, are expected to stand out in the SST market [3][28]. Group 3: Policy and Green Energy Integration - The introduction of policies supporting green electricity direct connection presents new opportunities for SST promotion in data centers, emphasizing the importance of green computing [14][16]. - SST is well-suited for scenarios that require collaboration between computing power and electricity, aligning with the "AI+" development direction [14][16]. Group 4: Technical Advantages of SST - SST significantly enhances space utilization and power supply efficiency, making it a strong candidate for direct current power supply in data centers [16][22]. - The modular design of SST allows for prefabricated installation, reducing construction cycles to less than 90 days and simplifying maintenance [22][24]. - SST supports integration with renewable energy sources, enhancing green energy consumption and meeting the requirements for integrated source-grid-load-storage systems [22][24].

Core Viewpoint - The construction of AI computing power centers is on the rise, and the demand for solid-state transformers (SST) is expected to grow due to their efficiency, compact size, flexibility, and prefabricated design, making them a preferred solution for future data center power supply architectures [1][2]. Group 1: AI Power Supply Architecture - The upgrade of AI power supply architecture to 800V HVDC is anticipated to make SST the optimal technical route in the long term [2]. - Major cloud service providers have raised capital expenditure expectations, accelerating the construction of AI data centers (AIDC) [2]. Group 2: Performance Advantages of SST - SST can improve overall efficiency by over 3 percentage points compared to traditional UPS power supply chains, reduce footprint by over 60%, and shorten installation and debugging cycles by 75% [3]. - SST is adaptable to green electricity integration and has strong advantages in lifecycle costs [3]. Group 3: Cost Reduction Potential - Although the initial investment cost for SST is currently high, there is significant potential for overall cost reduction as core components such as power semiconductor devices and amorphous nanocrystalline materials mature [3]. Group 4: Industry Landscape - Global leaders in AIDC, such as Eaton and Delta, have early reserves in SST solutions, while domestic companies are entering the market from traditional power equipment, AI power supply, and solar storage charging sectors [4]. - Some domestic companies have already applied SST products in projects involving AC/DC hybrid microgrids, with China West Electric having products used in data center projects [4]. Group 5: Recommended Stocks - Recommended stocks include Sifang Co., Ltd. (601126.SH), China West Electric (601179.SH), Jinpan Technology (688676.SH), and other related companies in the industry chain [5].

Summary of Key Points from the Conference Call Industry Overview - The data center power supply is transitioning from AC UPS architecture to High Voltage Direct Current (HVDC) and Solid State Transformers (SST) to meet increasing computing density demands, improve conversion efficiency, and reduce footprint [1][4] - The domestic UPS market remains dominant, but HVDC solutions are being actively adopted by internet operators [1][4] - The overseas market has a pressing demand for HVDC due to rapid increases in computing density, which significantly enhances overall efficiency by improving conversion rates and saving cabinet space [1][6] Core Insights and Arguments - Domestic enterprises are making rapid progress in SST applications, with pilot projects in the "East Data West Computing" initiative [1][5] - Major companies like Tencent and Alibaba are adopting HVDC combined with direct power supply from the grid, collaborating with firms like Zhongheng and Delta for higher integration [1][5] - The main advantages of transitioning to HVDC include reduced AC conversion stages, improved conversion efficiency, lower operational costs, space savings, and better integration of renewable energy sources [1][11] - The data center DC power market is expected to experience rapid growth from 2026 to 2028, with a compound annual growth rate (CAGR) exceeding 30% [1][12] Current Market Landscape - The current domestic and overseas data center power supply primarily uses AC UPS architecture, which is mature and dominated by companies like Eaton, Huawei, and Kehua [3][13] - The HVDC and SST markets are still in their infancy, with domestic companies like Zhongheng and Zhongda actively engaged in R&D [3][13][14] - The transition to HVDC will drive upgrades in power supply components, such as low-voltage electrical devices evolving into DC circuit breakers [3][16] Key Developments by Major Companies - Nvidia plans to launch an 800V architecture by 2027, which will utilize a large module to convert 10kV AC to 800V DC, enhancing efficiency for high-power data centers [8][10] - Google is adopting a ±400V power supply scheme and plans to transition to SST, while Meta is using a similar architecture in its HBRV4 framework [9][10] - Microsoft has proposed two power supply solutions: a ±400V CLL edge cabinet solution and a future integrated SST solution [10] Future Trends and Opportunities - The shift towards HVDC is expected to disrupt the existing UPS supply chain, allowing domestic companies to gain a foothold in the market [17] - Key components benefiting from HVDC transition include low-voltage electrical devices and relays, which will see upgrades to higher voltage standards [18] - The integration of green electricity and the push for carbon neutrality are driving the adoption of HVDC systems, presenting significant opportunities for domestic enterprises [16][17] Conclusion - The data center power supply market is on the brink of transformation, with HVDC and SST technologies poised to redefine efficiency and operational capabilities. The expected growth in the DC power market and the strategic moves by major tech companies indicate a robust future for this sector, particularly for domestic players who can leverage their R&D advantages [12][17]