Siemens and Reinhausen partner on solid-state transformer

Key Takeaways

• Siemens and Reinhausen partner to develop a solid-state transformer (SST) for grid voltages up to 36 kV
• The SST is designed for use in AI data centers, enabling higher efficiency and direct grid-to-rack DC conversion
• The technology supports modularity, scalability, and high availability, with a stable 800 VDC output
• Reinhausen brings expertise in voltage regulation and medium-voltage power electronics, while Siemens contributes experience in power electronics and grid integration

Introduction to Solid-State Transformers

The increasing demand for efficient and scalable power solutions in AI data centers has led to a strategic partnership between Siemens and Reinhausen. The two companies are collaborating to develop and industrialize a solid-state transformer (SST) for grid voltages up to 36 kV. This innovative technology is designed to support the unique power requirements of AI workloads, which are driving the need for more efficient and compact power architectures.

Benefits of Solid-State Transformers

SSTs offer several benefits over traditional power architectures, including:

• Higher efficiency and direct grid-to-rack DC conversion
• Smaller footprint and compact design
• Ability to respond to load changes in milliseconds, ensuring uptime and cost efficiency
• Support for higher-density computing environments

Partnership and Expertise

Reinhausen brings decades of experience in voltage regulation and medium-voltage power electronics, while Siemens contributes its expertise in power electronics, electrical power solutions, and grid integration. The partnership combines their strengths to develop a robust and efficient SST solution.

Technical Specifications

The SST is designed to operate up to 36 kV AC and can be applied modularly to lower voltages, making it adaptable to different grid-connection conditions. The technology delivers a stable 800 VDC output, typically required by AI-enabled data centers.

Comparison of Traditional and Solid-State Transformers

Bottom Line

The partnership between Siemens and Reinhausen marks a significant step towards developing efficient and scalable power solutions for AI data centers. The solid-state transformer technology has the potential to revolutionize the way power is delivered to high-density computing environments, enabling higher efficiency, compact design, and faster response times. With its modularity, scalability, and high availability, this technology is poised to support the growing demands of AI workloads and transform the future of data center infrastructure.