Power Transfer Circuit for Redundant Flight Energy Storage
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Solution Overview
Problem
Energy storage systems in flight vehicles, such as high-altitude platform stations, face reliability issues due to defects, degradation, or power shortages in energy storage apparatuses, leading to inefficient power supply and potential system failure.
Innovation Solution
An energy storage system with a power transfer circuit that connects multiple energy storage apparatuses, allowing for the transfer of electric power between them, ensuring continuous power supply even when defects occur, and optimizing the utilization of reserve units to prevent degradation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a reserve energy storage apparatus is included in the flight vehicle, then reliability of power supply is improved when defects occur, but the reserve apparatus becomes useless equipment when no defect occurs and continues to degrade while unused
Solution Approach 1:
The system dynamically switches between normal operation mode (where the reserve apparatus remains standby) and defect response mode (where the reserve apparatus activates to replace defective units). The control device monitors the state of energy storage apparatuses and dynamically adjusts the configuration to balance reliability and degradation prevention.
Solution Approach 2:
The system changes the operational parameters of the reserve energy storage apparatus based on the state of other apparatuses. When defects are detected, the reserve apparatus transitions from an idle charged state to an active power supply state, thereby preventing degradation through controlled usage rather than continuous idle charging.
2Reliability
If multiple energy storage apparatuses are used, then reliability is improved through redundancy, but device complexity increases due to additional components and management requirements
Solution Approach 1:
Each energy storage apparatus in the system is designed with universal functionality, where any apparatus can serve as a power source or a reserve unit depending on system needs. The reserve apparatus and operational apparatuses share the same structure and control interface, allowing flexible role assignment without increasing overall system complexity.
Solution Approach 2:
The control device automatically monitors the state of all energy storage apparatuses and performs defect detection and reserve activation without external intervention. The system self-manages the switching between apparatuses, reducing the operational complexity burden on users while maintaining high reliability through automated redundancy management.
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 enhances the reliability and efficiency of power supply by evenly utilizing multiple energy storage apparatuses, preventing unused reserve units from degradation and ensuring continuous operation by transferring power from healthy to defective units, thus maintaining system performance.
Implementation Method 1
a power transfer circuit that is connected to the plurality of energy storage apparatuses and transfers electric power between the plurality of energy storage apparatuses
Data Source
AI summary
An energy storage system used in a flight vehicle includes: a plurality of energy storage apparatuses; and a power transfer circuit that is connected to the plurality of energy storage apparatuses and transfer electric power between the plurality of energy storage apparatuses.