HVDC Backup Power Network for Low-Loss Communication Supply

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Solution Overview

Problem

Conventional communication devices suffer from significant energy losses and carbon emissions due to multi-stage power conversion processes, including AC-DC and DC-AC conversions, which strain air conditioning systems and reduce power supply reliability.

Innovation Solution

Implementing a power supply and backup network with a medium-low voltage power distribution system, high-voltage battery backup power system, and HVDC bus system, eliminating AC-DC and DC-AC conversions, and utilizing HVDC power distribution to reduce energy loss and enhance reliability.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If multi-stage power conversion (AC-DC and DC-AC) is used to ensure power supply reliability, then power supply reliability is improved, but energy loss increases significantly

Engineering Contradiction:

Improvepower supply reliabilityVSAvoidenergy loss

Core Design Contradiction:

ReliabilityVSLoss of energy

Solution Approach 1:

The patent extracts and eliminates the AC-DC and DC-AC conversion stages from the power supply system, retaining only the essential HVDC power transmission and distribution components. This removes the problematic conversion processes that caused energy loss while preserving the core power delivery function.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

Instead of the conventional AC power transmission approach that requires multiple conversions, the patent inverts the approach by using HVDC (High Voltage Direct Current) transmission throughout the system. This reversal of the conventional power flow methodology eliminates the need for AC-DC and DC-AC conversions.

Inventive Principle:

Principle #13The other way round (Inversion)

2Duration of action of stationary object

If multiple conversion stages are implemented to achieve uninterruptible power supply, then power supply continuity is improved, but carbon emissions increase

Engineering Contradiction:

Improvepower supply continuityVSAvoidcarbon emissions

Core Design Contradiction:

Duration of action of stationary objectVSObject-generated harmful factors

Solution Approach 1:

The patent removes the AC-DC and DC-AC conversion stages that were generating harmful emissions, keeping only the essential HVDC transmission infrastructure. This extraction eliminates the source of carbon emissions while preserving power supply continuity.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The patent discards the conventional AC power conversion infrastructure that caused environmental harm and recovers power supply reliability through efficient HVDC transmission. The harmful conversion processes are abandoned in favor of a cleaner alternative.

Inventive Principle:

Principle #34Discarding and recovering

3Reliability

If conventional AC power distribution with UPS is used to ensure reliability, then power supply stability is improved, but device complexity increases

Engineering Contradiction:

Improvepower supply stabilityVSAvoiddevice complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent extracts and removes the complex UPS (Uninterruptible Power Supply) systems and AC-DC conversion equipment from the power distribution architecture, simplifying the system to essential HVDC transmission and distribution components while maintaining reliability.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The patent inverts the conventional approach by eliminating the need for complex AC power management systems and UPS equipment, using instead a simplified HVDC transmission system that inherently provides stable power delivery without requiring additional complexity.

Inventive Principle:

Principle #13The other way round (Inversion)

Data Source

PatentUS20250337268A1Power supply and backup network of communication device

Publication Date: 2025.10.30 INSPUR SUZHOU INTELLIGENT TECH CO LTD

AI summary

The present application discloses a power supply and backup network of a communication device. The network includes a medium-low voltage power distribution system, a high voltage battery backup power system, a power distribution system, and a high-voltage direct-current (HVDC) bus system, where the medium-low voltage power distribution system is connected to the power distribution system by the HVDC bus system; the high-voltage battery backup power system is bypassed on the HVDC bus system; the medium-low voltage power distribution system is configured to provide HVDC power for the power distribution system by the HVDC bus system by using input mains power and oil energy backup power; the high-voltage battery backup power system is configured to provide HVDC backup power for the power distribution system by the HVDC bus system; and the power distribution system is configured to distribute, to a connected electrical device, the HVDC power.