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SiC based current source rectifier paralleling and circulating current suppression

机译:基于SiC的电流源整流器并联和循环电流抑制

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This paper develops a liquid cooled high efficiency three-phase current source rectifier (CSR) for data center power supplies based on 400 Vdc architecture, using SiC MOSFETs and Schottky diodes. The 98.54% efficiency is achieved at full load. The rectifiers are paralleled to achieve high power ratings and system redundancy. The current balance and hot-swap of paralleled CSRs are realized in simulation using master-slave control. Moreover, an improved modulation scheme through adjustment of the freewheeling state is proposed and verified to effectively suppress the circulating current.
机译:本文使用SiC MOSFET和肖特基二极管,开发了一种基于400 V dc 架构的数据中心电源的液冷高效三相电流源整流器(CSR)。满载时可达到98.54%的效率。整流器并联以实现高功率额定值和系统冗余。并行CSR的电流平衡和热插拔在仿真中使用主从控制实现。此外,提出并通过调整续流状态来改进调制方案,并进行了验证,以有效抑制循环电流。

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