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A novel hybrid propulsion system configuration and power distribution strategy for light electric aircraft
Energy Conversion and Management ( IF 9.9 ) Pub Date : 2021-04-24 , DOI: 10.1016/j.enconman.2021.114171
Shuangqi Li , Chenghong Gu , Pengfei Zhao , Shuang Cheng

Similar to the electrification of the automotive industry, the growing concerns with the shortage of fossil fuels has also called for a paradigm shift in aviation industry. To promote the aviation electrification process, it is necessary to develop an efficient energy storage system and a stable power transmission system to improve the reliability and extend the endurance of electric aircraft. This paper designs a novel propulsion system topology and power distribution algorithm for light manned electric aircraft. Firstly, a novel aircraft hybrid propulsion system topology is designed, in which the battery energy storage system can work synergistically with the fuel cell to provide power to the aircraft electric engine. Then, an adaptive energy management framework is developed to distribute the aircraft power requirement between energy storage devices. Meanwhile, an aircraft power balance state recognizer is designed to enhance the dynamic performance of the aircraft and adjust the working state of the propulsion system. The proposed hybrid propulsion system configuration and power distribution algorithm are verified under a prototype two-seater electric aircraft: Alpha Electro. Numerical analysis results indicate that the developed methods can dynamically meet the power requirement of aircraft under fast-charging and peak power requirement scenarios. With the developed hybrid propulsion system, most of the fuel cell high-power working points are moved to the medium and low area, which indicates that the fuel cell is effectively protected. Furthermore, the quantified hydrogen consumption can be reduced by 7.63% comparing to fuel cell electric aircraft.



中文翻译:

轻型电动飞机的新型混合动力系统配置和功率分配策略

与汽车工业的电气化类似,对化石燃料短缺的关注日益增加,这也要求航空工业发生范式转变。为了促进航空电气化进程,有必要开发一种高效的储能系统和稳定的动力传输系统,以提高可靠性并延长电动飞机的使用寿命。本文设计了一种新型的轻型载人电动飞机推进系统拓扑和功率分配算法。首先,设计了一种新型的飞机混合动力推进系统拓扑结构,其中电池能量存储系统可以与燃料电池协同工作,为飞机的电动发动机提供动力。然后,开发了自适应能量管理框架,以在能量存储设备之间分配飞机的动力需求。同时,飞机动力平衡状态识别器被设计为增强飞机的动态性能并调整推进系统的工作状态。拟议的混合动力推进系统配置和功率分配算法在两座原型电动飞机Alpha Electro上得到了验证。数值分析结果表明,所提出的方法可以动态满足飞机在快速充电和峰值功率需求情况下的功率需求。利用已开发的混合动力推进系统,大多数燃料电池高功率工作点都移到了中低区域,这表明燃料电池得到了有效的保护。此外,

更新日期:2021-04-26
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