Optimal power electronic architectures for DC distribution in datacenters

Abstract

Among the many advantages newer 400V DC distribution systems have over traditional AC distribution systems are improvements in efficiency, power density, and power-flow management. In these new DC power systems, AC “power supplies” are replaced by DC “power components” which enable an assortment design enhancement choices. This paper presents several new power system architectures that have been optimized for this class of applications. Each architecture presented uses a “power component” approach to minimize the number of conversion stages, maximize the use of available system elements, and reduce capital and operating costs.