Dual-Input Power Supply System for Data Centers
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Solution Overview
Problem
Current power supply systems for data centers lack balance between main and backup input power supplies, leading to inefficient operation where the backup supply remains offline unless the main supply fails.
Innovation Solution
A power supply system with two input power supplies and power supply units, each having a main and backup input port, where both supplies operate in parallel when normal, and the system dynamically switches to the other supply in case of failure, ensuring balanced power distribution through a power supply state monitoring unit and distributing unit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the backup input power supply is used only when the main input power supply fails, then the backup power supply ensures power continuity, but the backup power supply remains in an offline state during normal operation causing imbalance between the two power supplies
Solution Approach 1:
The system dynamically switches between main and backup power supplies based on operational status. During normal operation, both power supplies are online and can be switched between groups. When failure occurs, the system automatically transitions to backup supply, maintaining dynamic adaptability rather than static offline/online states
Solution Approach 2:
The backup power supply is pre-configured and kept in a ready state with monitoring mechanisms in place before failure occurs. The system performs preliminary checks and maintains standby capability, allowing immediate switch-over when needed while keeping the backup supply warm rather than completely offline
2Device complexity
If the main input power supply supplies all power supply units during normal operation, then the power distribution is simple, but the backup input power supply remains idle causing imbalance and wasted capacity
Solution Approach 1:
The power supply units are segmented into first and second groups, with each group connected to both main and backup power supplies. This segmentation allows flexible power distribution where either power supply can serve either group, preventing complete idle status of the backup supply while maintaining manageable complexity
Solution Approach 2:
Both the main and backup power supplies are configured with universal capability to supply power to any power supply unit through dual input ports. The backup power supply is not dedicated to a specific group but can serve any unit, making it multi-functional and preventing waste of capacity
3Ease of operation
If separate power distribution cabinets are used for main and backup power supplies, then the power supply configuration is clear and manageable, but the system complexity and space requirements increase
Solution Approach 1:
The system merges the power distribution function into a single power supply cabinet that accommodates both main and backup power supplies. Power supply units within the same cabinet have dual input ports connecting to both power supplies, combining previously separate distribution functions while maintaining clear configuration through standardized connections
Data Source
AI summary
A power supply system and a power supply method are provided. At least two power supply units are arranged in a power supply cabinet, each of the power supply units includes a main input port and a backup input port. The power supply units are divided into a first power supply group and a second power supply group. The first input power supply is connected to the main input port of each of the power supply units in the first power supply group and the backup input port of each of the power supply units in the second power supply group. The second input power supply is connected to the backup input port of each of the power supply units in the first power supply group and the main input port of each of the power supply units in the second power supply group.