Three-Phase Power Supply Backup Module for Data Center Stability
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Solution Overview
Problem
Conventional power supply systems for data centers face instability due to single-phase or three-phase module failures, leading to power outages and equipment damage, and are costly due to excessive copper lines and imbalance issues in three-phase modules.
Innovation Solution
A power supply system with a three-phase voltage source, multiple power supply modules, and backup modules, along with logic control circuits and a driving circuit, which detect abnormal operations and switch to backup transforming modules to maintain stable DC voltage output.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single-phase module is used for power supply, then the power supply structure is simple, but the system reliability deteriorates because the entire system fails when the PFC or DC/DC module is broken
Solution Approach 1:
The power supply system is divided into multiple independent phase modules (first phase module, second phase module, third phase module), each capable of operating independently. This segmentation allows the system to maintain partial functionality even when one module fails, thereby improving reliability while keeping individual module structures simple.
Solution Approach 2:
The system incorporates a backup module that remains standby and automatically activates when any of the main phase modules fails. This beforehand cushioning ensures continuous power supply and prevents system collapse, directly addressing the reliability issue without requiring complete redundancy of all components.
2Power
If a three-phase module is used for power supply, then the power handling capacity is improved, but the system reliability deteriorates due to phase imbalance causing blackout protection and coil damage
Solution Approach 1:
The three-phase power supply is segmented into independent phase modules rather than using a tightly coupled three-phase module. This allows each phase to operate independently with its own control, preventing phase imbalance from causing system-wide failures while maintaining high power handling capacity through parallel operation of multiple phases.
Solution Approach 2:
The control device dynamically adjusts operating parameters of each phase module based on real-time monitoring of phase balance and load conditions. By changing parameters such as switching frequency and duty cycle independently for each phase, the system maintains stability and prevents blackout protection triggering while handling high power loads.
3Ease of manufacture
If conventional power supply modules are used, then the manufacturing cost is reduced, but the system reliability deteriorates due to lack of backup mechanisms
Solution Approach 1:
The system includes a backup module configured to activate when any main phase module fails. This beforehand cushioning provides insurance against component failure without requiring complete redundancy, achieving improved reliability at moderate manufacturing cost by using only one backup module for multiple main modules.
Solution Approach 2:
The backup module is designed with universal functionality to replace any of the main phase modules, rather than having dedicated backups for each specific module. This multi-functionality reduces the total number of backup components needed, lowering manufacturing costs while maintaining system reliability through automatic failover capability.
Data Source
AI summary
A power supply system is disclosed. The power supply module comprises a three-phase voltage source, for generating a power source with three phases; a plurality of power supply modules, coupled to the three-phase voltage source, each comprising a plurality of major transforming modules corresponding to the three-phase voltage source for generating a plurality of direct-current voltages according to the three-phase voltage source; and at least a backup supply module, coupled to the plurality of power supply modules, each comprising a plurality of backup transforming modules corresponding to the three-phase voltage source, for generating the plurality of direct-current voltages corresponding to the three-phase voltage source by a backup transforming module corresponding to at least one of the plurality of major transforming modules of the plurality of power supply modules when the at least one of the plurality of major transforming modules is in an abnormal operation.