Series Power Distribution Bypass Paths
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Solution Overview
Problem
Aircraft power distribution systems face challenges in efficiently managing power distribution and fault handling due to the series connection of power sources and loads, which can lead to unnecessary component usage and increased weight, size, and maintenance costs.
Innovation Solution
A power system with independently associated bypass current paths and a controller module that enables or disables these paths to bypass specific power sources and loads, allowing for selective power distribution and fault management, thereby reducing unnecessary components and enhancing system reliability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If power sources and loads are connected in series to ensure power delivery, then power distribution reliability is improved, but system complexity and component quantity increase
Solution Approach 1:
The power distribution system is segmented into modular units, each with independent bypass paths. This allows the system to be divided into manageable sections that can be independently controlled and maintained, reducing overall system complexity while preserving reliability through distributed architecture
Solution Approach 2:
The system dynamically reconfigures connection topologies based on operational needs and fault conditions. Bypass paths are selectively activated or deactivated to optimize the series connection configuration, allowing the system to adapt between full series operation and partial bypass modes to balance reliability and complexity
2Reliability
If series connection is used to deliver power from sources to loads, then power criteria are met, but weight and size increase
Solution Approach 1:
Faulty or unnecessary components are extracted from the series chain using bypass paths. This removes problematic elements that contribute to weight and size while maintaining the essential power delivery function through alternative current paths that exclude the extracted components
Solution Approach 2:
The system selectively discards components from active service by routing current through bypass paths when they are faulty or not needed. This allows weight reduction by removing unnecessary components from the operational configuration while preserving the ability to recover and reintegrate them when required
3Adaptability or versatility
If bypass paths are added to enable selective component bypassing, then system adaptability is improved, but device complexity increases
Solution Approach 1:
The bypass paths are designed with universal switching mechanisms that can handle multiple types of components (power sources, loads, protective devices) through a standardized interface. This multi-functional approach increases adaptability while controlling complexity by using repeated, standardized bypass modules rather than custom solutions for each component type
Data Source
AI summary
A power system and method of operating the power system includes a first power source and a second power source arranged in a series, a first electrical load and a second electrical load arranged in series with first and second power sources, and a set of bypass current paths independently associated with at least a subset of the first power source, the second power source, the first electrical load, and the second electrical load.