Aircraft Power Distribution Circuits for Balanced Propulsion Redundancy
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Solution Overview
Problem
Electrically powered aircraft require improved power distribution systems that ensure redundancy and stability in the event of failure events to maintain balanced propulsion and aircraft stability.
Innovation Solution
A power distribution system with multiple isolated power distribution circuits coupled to batteries, each supplying power to balanced electric propulsion systems, featuring contactors and current meters to manage power distribution and decouple batteries from the electrical bus under threshold conditions, ensuring balanced forces and stable aircraft operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple isolated power distribution circuits are used to improve redundancy, then reliability is improved, but device complexity increases
Solution Approach 1:
The power distribution system is divided into multiple isolated power distribution circuits, where each circuit independently couples a respective battery to two or more electric propulsion systems. This segmentation ensures that a failure in one circuit does not affect other circuits, thereby improving reliability through redundancy while managing complexity through modular design
Solution Approach 2:
The system incorporates multiple isolated power distribution circuits and electrical busses in advance to provide backup pathways for power distribution. Contactors are pre-configured to automatically decouple failed batteries or circuits, and current meters are installed to monitor conditions before failures occur, cushioning against potential reliability issues
2Stability of the object's composition
If power distribution circuits couple batteries to balanced propulsion systems, then aircraft stability is improved, but device complexity increases
Solution Approach 1:
Each power distribution circuit is configured to couple a battery to specific electric propulsion systems that are positioned to apply balanced forces to the aircraft. The circuits are tailored to maintain local balance at each propulsion system while contributing to overall aircraft stability, allowing targeted power distribution that maintains aerodynamic balance without requiring complete system redesign
Solution Approach 2:
The electrical busses serve multiple functions by coupling pairs of power distribution circuits together, enabling a single bus to distribute power from multiple batteries to multiple propulsion systems. This multi-functionality reduces the need for separate dedicated wiring for each battery-propulsion system pair, managing complexity while maintaining stability
Data Source
AI summary
A power distribution circuit for an electrically powered aircraft includes a plurality of batteries and a plurality of electric propulsion systems. A plurality of power distribution circuits each couple a battery of the plurality of batteries to two or more electric propulsion systems. The plurality of electric propulsion systems are positioned on the aircraft to apply balanced forces to the aircraft such that in the event of a failure, the aircraft remains stable and only experiences a loss in altitude or speed.