All-Electric NASA N3-X Aircraft Electric Power Systems
All-Electric NASA N3-X Aircraft Electric Power Systems
复制标题
全电动 NASA N3-X 飞机电力系统
DOI：
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发表时间：
2022
影响因子：
7
通讯作者：
M. Saghafi
中科院分区：
文献类型：
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作者：
M. Ghassemi;Ashkan Barzkar;M. Saghafi
本文首次对NASA N3-X飞机进行了全电气化改造，去除了发动机，介绍了全电动NASA N3-X飞机电力系统(EPS)，该系统由电池、燃料电池和超级电容器等四个电化学能量单元(EEU)提供。在这方面，提出了三种中压直流(MVDC)、±5kVdc、双极EPS结构，并通过潮流分析对其进行了详细的讨论和分析。文中还对所提出的三相交流、10kVac、EPSS结构进行了详细的讨论和分析，以供比较。为了对所提出的MVDC EPS进行PF分析，还修改和开发了两个恒定发电和负载情况下的直流网络PF求解器。选择潜在的电缆导线，并提供提示以选择最终导线；为了评估选定导线的性能，估计飞机的尺寸，并根据提供的尺寸计算电缆参数。提出的EPS体系结构在正常情况下以及所有n-1个意外情况下都满足电力系统规划标准。本文的目的是评估新设计的EPS，因此对EEU和推进电机做出了假设，从而影响了PF分析。
In this paper, turboelectric NASA N3-X aircraft is fully electrified for the first time; engines are removed and the all-electric NASA N3-X aircraft electric power system (EPS) is introduced, supplied by four electrochemical energy units (EEU) including batteries, fuel cells, and supercapacitors. In this regard, three medium voltage direct current (MVDC), ±5 kVdc, bipolar EPS architectures are proposed for the aircraft, discussed, and analyzed in detail by performing power flow (PF) analysis. Proposed architectures are also considered as 3-phase AC, 10 kVac, EPSs and discussed and analyzed in detail for comparison. To perform PF analysis for proposed MVDC EPSs, two PF solvers for dc networks under constant power generations and loads are also modified and developed. Potential cable conductors are selected and hints are provided to choose final conductors; to assess the performance of selected conductors, dimensions of the aircraft are estimated and cable parameters are calculated based on presented dimensions. Proposed EPS architectures meet power system planning criteria under normal condition as well as all n-1 contingencies. This article aims to assess newly designed EPSs and, therefore, assumptions are made about EEUs and propulsion motors to the extent whereby PF analysis is affected.