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Increasing the safety of more electric aircraft through a novel algorithm in the DC power system
International Journal of Electrical Power & Energy Systems ( IF 5.2 ) Pub Date : 2021-03-01 , DOI: 10.1016/j.ijepes.2020.106566
Fermín Rodríguez , Gaizka Martínez , Sergio Rodríguez , Jose M. Echeverría

Abstract In the last few years, the More Electric Aircraft concept has been proposed as a solution not only for increasing the efficiency of the entire aircraft, but also for reducing CO2 and NOx emissions. However, to purse the increased electrification of aircraft, certain challenges, such as safety, security and reliability, need to be overcome. In the literature, component redundancy is usually proposed as the only way to improve aircraft safety. However, this paper presents a method that allows the concept of redundancy to be replaced by the combination of a new algorithm and a recently developed device, which makes it possible to decentralize the traditional aircraft power system architecture, thereby increasing fault tolerance on aircraft. This algorithm detects where the fault takes place, calculates new hardware configuration options based on minimizing power losses, decides which choice is the optimal one and reconfigures the system to avoid the detected fault. To analyse whether the proposed methodology works properly, a series of tests were run in a MATLAB ® simulator. The results show that the decentralized algorithm is able to find alternative paths and continue operating powered loads when a fault occurs in aircraft DC power systems.

中文翻译:

通过直流电源系统中的新算法提高更多电动飞机的安全性

摘要 在过去的几年里,更多电动飞机的概念​​被提出作为一种解决方案,不仅可以提高整个飞机的效率,而且可以减少 CO2 和 NOx 的排放。然而,为了实现飞机电气化的增加,需要克服某些挑战,例如安全性、安保性和可靠性。在文献中,组件冗余通常被认为是提高飞机安全性的唯一途径。然而,本文提出了一种方法,允许通过新算法和最近开发的设备的组合来取代冗余的概念,这使得去中心化传统飞机电力系统架构成为可能,从而提高飞机的容错能力。该算法检测故障发生的位置,基于最小化功率损耗计算新的硬件配置选项,决定哪个选择是最佳选择,并重新配置系统以避免检测到故障。为了分析所提出的方法是否正常工作,在 MATLAB ® 模拟器中运行了一系列测试。结果表明,当飞机直流电源系统发生故障时,分散算法能够找到替代路径并继续运行受电负载。
更新日期:2021-03-01
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