Decentralized Power Distribution Node for Aircraft Transient Loads
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Solution Overview
Problem
Aircraft power distribution systems face challenges in efficiently managing power distribution to electrical loads during transient periods when the primary power sources, such as generators, cannot meet peak demands, leading to potential power shortages and system instability.
Innovation Solution
The implementation of a power distribution node architecture that includes microgenerators and power storage devices, strategically located proximate to electrical loads, which can supplement power through a common power distribution bus, enabling selective energization and conversion of power as needed, managed by a controller module to address transient power demands.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If a centralized power distribution system is used with primary generators, then power can be generated and distributed to electrical loads, but the system cannot meet peak power demands during transient periods leading to power shortages
Solution Approach 1:
The patent divides the centralized power system into distributed power distribution nodes throughout the aircraft. Each node includes local power storage devices and microgenerators that can independently supplement power locally, eliminating the single-point failure problem and enabling peak demand to be met through distributed supplementation.
Solution Approach 2:
Power storage devices are pre-charged during normal operation when power demand is low. During transient peak demands, these pre-charged storage devices immediately supplement power without waiting for primary generators to respond, thus preventing power shortages before they occur.
2Power
If power distribution nodes are dispersed throughout the aircraft, then localized power supplementation can meet peak demands, but the wiring infrastructure becomes more complex
Solution Approach 1:
The patent combines multiple functions into integrated power distribution nodes that include power storage devices, microgenerators, and distribution controls in single modular units. This merging reduces the overall wiring complexity compared to separate centralized systems while maintaining localized power supplementation capability.
Solution Approach 2:
Each power distribution node is designed as a universal module that can perform multiple functions: storing power, generating power locally, and distributing power to connected loads. This multi-functionality reduces the need for specialized wiring for different functions, simplifying the overall infrastructure.
3Reliability
If microgenerators are deployed at power distribution nodes, then redundant power sources enhance reliability, but the device complexity increases
Solution Approach 1:
The control systems in power distribution nodes dynamically manage the operation of microgenerators and power storage devices based on real-time power demand and availability. This dynamic control allows the system to activate redundant power sources only when needed, reducing operational complexity while maintaining reliability.
Solution Approach 2:
The system incorporates feedback mechanisms that continuously monitor power demand, storage levels, and generator status. This feedback enables automatic coordination between multiple power sources at each node, simplifying the control of redundant systems by allowing them to self-regulate based on system conditions.
Data Source
AI summary
A power distribution node for a power architecture, and method for operating, includes a microgenerator configured to generate a supply of electrical power, and a power distribution unit connected with a power supply bus and the microgenerator and configured to selectively energize at least a subset of electrical loads disposed proximately to the power distribution node. The energizing power is operably supplied by at least one of the power supply bus or the microgenerator.