Conversion Layer - Power Conditioning & Conversion
Distribution Layer - 380V DC Main Distribution
Load Layer - NVIDIA G300/G200 NVL72 AI Supercomputing System
Auxiliary Layer - Monitoring, Cooling & Safety Systems
Main Rectifier
Delta DPR
AC→380V DC
97% Efficiency
PV Converter
MPPT Control
DC→380V DC
98% Efficiency
Wind Converter
AC→380V DC
Variable Freq
96% Efficiency
Bidirectional
BESS Interface
Charge/Discharge
95% Efficiency
Backup Converter
AC→380V DC
Emergency Switch
94% Efficiency
380V DC Main Distribution Busbar - OCP DC Power Shelf Spec v2.0
Dual Busbar Design • GND Bonding • PDB Distribution
Equipment Grounding Busbar - IEC 61140 Standard
NVIDIA G300/G200 NVL72 AI Supercomputing System
• GPU Configuration
72 × Grace Hopper
NVLink 5.0 Interconnect
576 TB HBM3e
• Power Requirements
Peak Power: 120kW
48V DC Direct Supply
Redundant PSU Design
• Cooling System
Liquid + Air Hybrid
Inlet Temp: 18°C
Flow Rate: 180 L/min
OCP ORv3 Compatible • Modular PSU • 48V DC Distribution • N+1 Redundancy Protection
Power Distribution Unit
PDB Main Module
380V→48V DC
30kW × 4 Units
Hot-Swappable
Auxiliary Equipment
Network Switches
Storage Controllers
Monitoring Systems
Management Nodes
AI System Monitoring
• GPU Temperature Monitor
• Performance Analysis
• Fault Prediction
• Load Scheduling
Dedicated Liquid Cooling
CDU Cooling Unit
18°C Inlet Temp
180 L/min Flow
Heat Recovery System
High-Speed Network
InfiniBand HDR
400Gb/s Interconnect
RDMA Support
Low-Latency Design
Safety Protection
Liquid Leak Detection
Over-Temp Protection
Emergency Shutdown
Gas Fire Suppression
400V AC
300-600V DC
380V DC
48V DC → 120kW Peak
97%
98%
96%
95%
94%
System Legend
OCP Standards Reference:
• DC Power Shelf Spec v2.0
• ORv3 Specification v2.1
• Safety & Grounding Guide
• CDC Best Practices v1.2
Architecture Advantages:
• Balanced Symmetric Design
• Multi-Source Integration
• Modular Scalability
• N+1 Redundancy
• Overall Efficiency >95%
• OCP Standard Compatible
🎯 Balanced Design Core Advantages
⚖️ Load Balancing
- Multi-input symmetric configuration
- 6 OCP racks evenly distributed
- Matched converter capacity
- Heat distribution design
🔄 Redundant Protection
- N+1 power module configuration
- Multi-path power supply
- Automatic failover switching
- Hot-swappable maintenance
📈 Scalability
- Modular component design
- Horizontal/vertical scaling
- Configurable energy sources
- Dynamic load balancing
🏆 ColdElectric NVIDIA NVL72 AI CDC Recommendation:
Adopts symmetric balanced design with Delta DPR-3000 × 2 + Lite-On DC/DC module cluster, optimized for single NVIDIA G300/G200 NVL72 AI system, achieving >96% overall efficiency, supporting 2N redundant architecture, ensuring 99.99% availability for AI training tasks.
✅ OCP 380V DC Standard Compliance Verification
| OCP Specification Requirements |
Compliance Status |
Implementation Details |
Reference Documents |
| Main power architecture at 380V DC |
✅
|
380V DC main distribution busbar throughout system |
DC Power Shelf v2.0 |
| Multi-source power input support |
✅
|
AC+DC hybrid input with renewable energy support |
CDC Best Practices |
| OCP ORv3 rack structure |
✅
|
6 ORv3 racks with 48V DC distribution |
ORv3 Spec v2.1 |
| Efficiency requirements (>95%) |
✅
|
Overall system efficiency >96%, modules 94-98% |
Energy Efficiency Guide |
| Modularity and scalability |
✅
|
Symmetric modular design with horizontal/vertical scaling |
Modular Design Guide |
| Redundancy and high availability |
✅
|
N+1/2N architecture, hot-swap, fault isolation |
Redundancy Design |
| Safety grounding system |
✅
|
Equipment grounding busbar compliant with IEC 61140 |
Safety & Grounding |
| PDB/PSU distribution modules |
✅
|
PDB-48V modules with OCP DC-DC PSU |
PSU Design Guide |
🏆
Compliance Assessment Result: Fully Compliant with OCP 380V DC Standards
This architecture is specifically designed for NVIDIA G300/G200 NVL72 AI supercomputing systems, clearly complying with
OCP (Open Compute Project) 380V DC core standards and technical specifications in logical configuration, voltage levels,
conversion methods, cooling systems, and safety design. It can serve as a standard reference design for enterprise-level
AI CDC (Containerized Data Center) deployment.
🗓️ Implementation Timeline & Milestones
Month 1-2
• Detailed Design
• Equipment Procurement
• Site Preparation
Month 3-4
• Infrastructure Construction
• Power System Installation
• 380V DC Busbar
Month 5-6
• OCP Rack Deployment
• System Integration Testing
• Performance Tuning
Month 7-8
• Monitoring System Online
• Trial Operation
• Production Launch
🎯 Key Success Factors: Vendor Coordination, Standardized Components, Modular Deployment, Phased Validation, Team Training