S&T出版 List of News Articles

With the increasing capacity and high power density of AI data centers, significant transformations are required in power supply and distribution systems. In particular, there is a shift from traditional low-voltage DC power supply to high-voltage 800 V DC distribution, and technologies that efficiently supply power from medium-voltage AC to DC are gaining attention. On the other hand, the large capacity of data centers, rapid load fluctuations, and simultaneous dropouts during system faults present new challenges to the frequency and voltage stability of AC systems. SST (Solid State Transformer) is expected to be a key technology that connects next-generation data centers and power systems, as it can integrate voltage conversion and AC/DC conversion using high-frequency insulation, along with power and voltage control through GFL and GFM control. In light of this background, this seminar will explain the role of SST, circuit configurations, and the latest trends and challenges in practical implementation from the basics.

The practical application and high performance of CPO are also expected to involve the use of polymer materials. In this seminar, we will introduce the research and development trends of the components, materials, and implementation structures of CPO, as well as the required characteristics for polymer materials and the prospects for the development of components and devices using polymers.

Sodium-ion batteries are not only on the verge of large-scale commercialization for stationary storage applications but are also approaching mass production for automotive use in China due to advancements in high energy density. This seminar will introduce the latest trends in practical applications, as well as the progress in material technology that achieves high energy density while maintaining advantages in resources, costs, and low-temperature characteristics, along with future directions for material development.

Signs had already been visible around this time last year, but the proliferation of AI and the accompanying scaling up of server systems in data centers (DC) have raised challenges regarding measures for the enormous power consumption and some form of rationalization. In this seminar, with an application to large stationary battery systems for DC in mind, I would like to explain the matching of energy characteristics and power characteristics of storage batteries, the operating principles of metal electrode batteries with new aqueous electrolytes, and the current state of development. Additionally, I would like to address, within the scope of available information, the lack of global performance standards and relevant regulations and safety standards that are also challenges in EV batteries and solid-state batteries.

The expansion of AI has led to a rapid increase in power demand for data centers (DC) in North America, revealing a power shortage. DC operators are accelerating their transition from grid dependency to alternative power sources such as renewable energy and battery storage. This presentation will provide an overview of the changes in the North American power market due to the emergence of AI data centers, discuss the prospects of battery and long-duration energy storage (LDES) technologies, and explore trends in integrated power design for DCs.

In recent years, the demands for drive motors used in mobile bodies have diversified, including miniaturization, lightweight design, high efficiency, and cost reduction, while also requiring a high level of quality. This seminar will primarily focus on drive motors for mobile bodies (automobiles, aircraft, drones) and will broadly introduce design concepts, analysis results, and experimental results, ranging from the basics to research case studies. Additionally, we will present technologies common to many motors aimed at achieving high performance.

In power electronics such as xEV and AI data centers, the importance of passive components is increasing as key parts for improving performance, reliability, and miniaturization. In this seminar, two experts will explain the usage locations, roles, required characteristics of magnetic components and aluminum electrolytic capacitors, as well as important thermal management technologies among them.