高功率机架 V3 (HPRv3) 50V 侧装电源机架设计.pdf

1、Jingjing Sun,Power Engineer,MetaBo Wen,Power Engineer,MetaMohammed Alisa,Mechanical Engineer,MetaDmitriy Shapiro,Mechanical Engineer,MetaHigh Power Rack v3(HPR v3)50V Side Power Rack DesignHigh Power Rack v3(HPR v3)50V Side Power Rack DesignJingjing Sun,Power Engineer,MetaBo Wen,Power Engineer,MetaM

2、ohammed Alisa,Mechanical Engineer,MetaDmitriy Shapiro,Mechanical Engineer,MetaRACK&POWER HPR v3 50V Side Power Rack Overview-Why HPR v3?-Key Hardware Components-Application Cases Mechanical Design-Vertical Busbar(VBB)Design-Integration with Next-Gen Powershelves-Rack alignment-Horizontal Busbar(HBB)

3、Design and integration Power System Operation-An ORW Example-Communication cablingAgenda Driven by AI workloads with rapidly increased power demand Advantages-Creates space for stacking up more power hardware -Less system design and implementation complexity-Maintain high end-to-end power delivery H

4、orizontal Busbar(HBB)connects the two racks Existing HPRv3 Rack Power Capability-300kW DC power load-250kW for GPU workloads with pulse powerWhy HPR v3?50V HBBs50V HBBsHPRv3 Power RackHPRv3 IT RackHPRv3 Rack Key HW ComponentHW itemDescriptionRack Standard ORV3-HPR rack with minor modificationsPower

5、ShelvesHPRv1 Power Supply Unit(PSU)Shelf,33kW DC,1OU HPRv1 Battery Backup Unit(BBU)Shelf,33kW DC,2OUHPRv2 Power Supply Unit(PSU)Shelf,72kW DC,1OU HPRv2 Battery Backup Unit(BBU)Shelf,72kW DC,2OUBusbarsHorizontal Busbar(HBB)-Passive HBB,Max.25kW DC-Fan-cooled HBB,Max.33kW DCVertical Busbar(VBB)-HPRv3

6、Rack:Air-cooled,Max.2x155kW DC-HPRv3 IT Rack:Air-cooled(Max.155kW DC)/Liquid-cooled VBB(Max.700kW DC)Pulse Power SmoothingSupercapacitor unit(CBU)Shelf,Max.24kW,1OUCommunication Wedge400FRONT REARPower Rack PSU ShelfIT Rack Power Rack Supercap ShelfBBU ShelfHorizontal Busbar(HBB)Vertical Busbar(VBB)