Multi-Converter Power Supply Layout for Redundant Data Center Loads

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Solution Overview

Problem

Data centers face challenges with low power utilization efficiency, high costs due to redundant connection units, and frequent power supply failures leading to downtime, especially with backup batteries having low utilization and high costs.

Innovation Solution

A power supply system with multiple converters and loads connected between power supply devices, allowing direct power distribution without connection units, and utilizing energy storage devices for backup, ensuring high efficiency and availability.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If multiple power supply lines are connected using looped network or hand-in-hand interconnection, then availability utilization efficiency (AUE) is enhanced, but device complexity increases due to connection units such as circuit breakers and DC converters

Engineering Contradiction:
Improveavailability utilization efficiencyVSAvoidsystem complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent merges multiple power supply lines directly at the load端 without using separate connection units. The load receives power from multiple power supply devices simultaneously, eliminating the need for circuit breakers and DC converters that were previously required for interconnection. This combining approach maintains reliability while reducing system complexity.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The load is designed to universally accept power from multiple power supply devices through a common interface. The power supply devices can function independently or in combination, providing flexible power distribution without requiring specialized connection units for each configuration.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Loss of energy

If power supply facility operates at low load rate, then power utilization efficiency decreases, but infrastructure utilization efficiency (IUE) requires enhancing to reduce investment

Engineering Contradiction:
Improveconversion efficiencyVSAvoidinfrastructure utilization efficiency
Core Design Contradiction:
Loss of energyVSProductivity

Solution Approach 1:

The system dynamically adjusts power distribution among multiple power supply devices based on actual load requirements. When load rate is low, the system activates only the necessary number of power supply devices, ensuring each operating device maintains high conversion efficiency. This dynamic adjustment prevents energy loss while optimizing infrastructure utilization.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system changes operational parameters by adjusting the number of active power supply devices according to load conditions. This parameter adjustment ensures that operating devices work at optimal efficiency points, avoiding the conversion efficiency degradation that occurs at low load rates, while still meeting infrastructure utilization requirements.

Inventive Principle:
Principle #35Parameter changes

3Reliability

If backup battery is configured for power supply failure protection, then availability is improved, but cost increases and space utilization efficiency (SUE) decreases

Engineering Contradiction:
Improvepower supply availabilityVSAvoidoccupied area
Core Design Contradiction:
ReliabilityVSArea of stationary object

Solution Approach 1:

The system uses energy storage devices integrated within the power supply devices to provide backup power. Each power supply device has its own energy storage capability, eliminating the need for separate large-scale backup battery systems. This self-service approach provides reliability while minimizing occupied space.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The backup power function is segmented and distributed to individual power supply devices through integrated energy storage devices, rather than using a centralized backup battery system. This segmentation reduces the total space required for backup power while maintaining availability during failures.

Inventive Principle:
Principle #1Segmentation

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The system achieves high efficiency, reduced costs, and enhanced availability by maintaining power supply through converter redundancy and energy storage, minimizing downtime and data loss.

Implementation Method 1

a first converter including a first port electrically connected to the first port of the first power supply device, a second port electrically connected to the third port of the first power supply device, and a third port electrically connected to the fourth port of the first power supply device

Methodology Applied
Scientific EffectElectromagnetic conversion: Electromagnetic Induction

Data Source

PatentUS12596418B2Power supply system and power supply method
Publication Date: 2026.04.07 DELTA ELECTRONICS (SHANGHAI) CO LTD
  • US12596418B2 patent drawing
  • US12596418B2 patent drawing
  • US12596418B2 patent drawing

AI summary

The disclosure provides a power system comprising: a first converter comprising a first port electrically connected to the first port of a first power device, a second port electrically connected to the third port, and a third port electrically connected to the fourth port; a second converter comprising a first port electrically connected to the second port of the first power device, a second port electrically connected to the third port, and a third port electrically connected to the fourth port; a third converter comprising a first port electrically connected to the first port of a second power device, a second port electrically connected to the third port, and a third port electrically connected to the fourth port; a fourth converter comprising a first port electrically connected to the second port, a second port electrically connected to the third port, and a third port electrically connected to the fourth port.