Unified Power Bus Control for Multi-Input Station Power Supply

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Solution Overview

Problem

Existing power systems in communication stations face incompatibility issues and complex management due to multiple types of power inputs and outputs, leading to high deployment costs and inefficiencies.

Innovation Solution

A power control method and system that includes an input module, power management unit, and output module, with a bus connected to both, allowing for voltage conversion and management of multiple power inputs and outputs through control signals generated based on voltage and load information, enabling flexible power supply and efficient management.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If multiple types of power supplies are deployed at a station to meet various power requirements, then power supply versatility is improved, but device complexity and management difficulty increase

Engineering Contradiction:
Improvepower supply versatilityVSAvoiddevice complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent implements a universal power system where a single integrated platform can accept multiple types of power inputs (AC, DC, solar, HVDC) and provide multiple power outputs through a unified power conversion module. The system uses a common bus architecture and intelligent control to manage different power sources, eliminating the need for separate dedicated power systems for each power type.

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

Solution Approach 2:

The patent merges multiple separate power conversion systems into a single integrated power platform. Different power conversion functions (AC-DC, DC-DC, PV-DC, HVDC-DC) are combined into one system that shares common components such as the bus, control unit, and monitoring infrastructure, thereby reducing overall system complexity while maintaining versatility.

Inventive Principle:
Principle #5Merging (Combining)

2Adaptability or versatility

If multiple separate power systems are deployed for different power inputs, then power conversion capability is improved, but management and maintenance complexity increases

Engineering Contradiction:
Improvepower conversion capabilityVSAvoidmanagement and maintenance
Core Design Contradiction:
Adaptability or versatilityVSEase of operation

Solution Approach 1:

The power management unit implements a universal control interface that can manage all types of power inputs and outputs through a single unified system. The monitoring and control functions are integrated into one platform, allowing operators to manage diverse power sources (AC, DC, solar, HVDC) through a common user interface and maintenance protocol.

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

3Productivity

If dedicated power conversion systems are deployed for each power input type, then power conversion efficiency is improved, but deployment cost increases

Engineering Contradiction:
Improvepower conversion efficiencyVSAvoiddeployment cost
Core Design Contradiction:
ProductivityVSEase of manufacture

Solution Approach 1:

The patent combines multiple dedicated power conversion systems into a single integrated platform that shares common components including the bus architecture, control unit, monitoring system, and housing. This merging reduces the total number of components needed, lowers deployment costs, and simplifies installation while maintaining the efficiency of individual power conversion functions through specialized modules within the unified system.

Inventive Principle:
Principle #5Merging (Combining)

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 solution improves power supply flexibility and management efficiency by automatically identifying and matching power sources with conversion units, reducing costs and maintaining stable input and output voltages even during power failures.

Implementation Method 1

converting a voltage of each input circuit into a bus voltage based on the first control signal; converting the bus voltage into a load voltage based on the second control signal

Methodology Applied
Scientific EffectVoltage conversion:

Data Source

PatentUS11894686B2Power control method and power system
Publication Date: 2024.02.06 HUAWEI TECH CO LTD
  • US11894686B2 patent drawing
  • US11894686B2 patent drawing
  • US11894686B2 patent drawing

AI summary

A power control method comprises: obtaining voltage information of each input circuit; generating a first control signal based on the voltage information and a bus voltage value; converting a voltage of each input circuit into a bus voltage based on the first control signal; obtaining load information; generating a second control signal based on the load information and the bus voltage value; converting the bus voltage into a load voltage based on the second control signal; and outputting the load voltage.