数据中心高压直流配电.pdf

1、Data Center High Voltage DC Distribution 2Data Center High Voltage DC Distribution RACK&POWERKelvin HuangHW Dev DirectorAzure Hardware System and Infrastructure MicrosoftLaurentiu OlariuRack and Power ArchitectAzure Platform ArchitectureMicrosoft3AC busway+whips“Yesterday”and“Today”AC Voltage Distri

2、bution To RackATS/breakersUPS AC/DC+DC/ACMVAC to LVAC transformer4AC busway+whipsBreaking Down The“Yesterday”and“Today”LossesATS/breakersRow level UPS AC/DC+DC/ACMVAC to LVAC transformerAC distribution to IT racks480Vac protection480Vac to DC and back to 480Vac4%-6%loss13.8kVac to 480Vac2%loss2%8%-1

3、0%loss5“Yesterday”IT Rack Power Distribution EffectAC distribution to IT racks480Vac protection480Vac to DC and back to 480Vac4%-6%loss13.8kVac to 480Vac2%loss2%lossIT Rack PSU 480Vac 50Vdc2%-3%loss10%-13%loss6“Today”IT Rack Power Distribution EffectAC distribution to IT racks480Vac protection480Vac

4、 to DC and back to 480Vac4%-6%loss13.8kVac to 480Vac2%loss2%lossDiablo 400 480Vac +/-400Vdc or 800Vdc2%-3%lossIT Rack DC/DC+/-400Vdc or 800Vdc 50Vdc2%loss12%-16%loss7MVAC to MVDC via Solid State Transformer(SST):Replaces traditional transformer+UPSProvides direct medium-voltage DC output from AC inp

5、utSignificantly reduces conversion stepsDC Protection&Breakers:Ensures safety in MVDC distribution pathDC Busway+Whips to Rack:Direct delivery of MVDC(e.g.,800VDC)to the IT rackEliminates need for local AC distributionDC voltage distribution busway+whips“Tomorrow”DC Voltage Distribution To RackDC vo

6、ltage protection/breakersMVAC to MVDC Solid Stat Transformer(SST)8Breaking Down The“Tomorrow”LossesDC distribution to IT racksMVDC protectionSST MVAC to MVDC(800Vdc)3%-4%loss2%DC voltage distribution busway+whipsDC voltage protection/breakersMVAC to MVDC Solid