英伟达近日宣布,计划将数据中心电力基础设施从现有的54V机架供电升级至800V高压直流(HVDC)系统,以支持1MW及以上的超高功率密度机架。该公司提出,通过将电网的13.8kV交流电直接转换为800V HVDC,可减少多次电能转换的损耗,并显著降低铜缆用量。据英伟达测算,传统54V供电方案在1MW机架中需使用超过200kg铜母线,而800V HVDC技术可提升5%的端到端效率,同时减少电流、铜缆...
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