Abstract

In recent decade, the demand for power distribution system in data centers are significantly climbed, while the requirements for advanced power flow control for DC power distribution systems are in urge needed. This paper presents higher-reliability DC power distribution systems using a triple active bridge (TAB) converter that can be applied in a data center, and it will be shown a power flow control among the three DC power distribution systems. The TAB converter is composed of three DC/AC converters connected via a transformer, and has ability to transmit the power to arbitrary directions. This paper proposes DC power distribution systems for data center using the TAB converter for balancing the power from the voltage sources. The feature of this system has no batteries. Then, the power flow control with closed-loop feedback control and the load balancing control are explained for adjusting the unbalanced load condition in data centers. The simulation designed the operation of DC power distribution system using 380V TAB converter in data center, and the power flow control for the power distribution system. From these results, the performance of the power flow control is confirmed, while the functional behavior of proposed three DC power distribution systems using the TAB converter is proved.

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