Battery package design optimization for small electric aircraft

Wang, Mingkai; Zhang, Shuguang; Diepolder, Johannes; Holzapfel, Florian

doi:10.1016/j.cja.2020.04.021

Cited by 21 publications

(8 citation statements)

References 13 publications

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“…The ECM dynamics are represented by the following first-order ordinary differential equations (ODE) [25]:…”

Section: Equivalent-circuit Modelmentioning

confidence: 99%

“…where U B and U OC are, respectively, the terminal and open-circuit voltage of LIB, R B is the LIB internal resistance, SOC is the state-of-charge, Q max is the maximum capacity, η E and ν ∈ [0, 1] are separately the efficiency and duty cycle of the motor controller (which may be represented by a proportional-integral controller that takes ω E as the feedback signal [25]), and N S and N P are, respectively, the number of LIBs connected in series and parallel.…”

Section: Equivalent-circuit Modelmentioning

confidence: 99%

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Electric Flight in Extreme and Uncertain Urban Environments

Wang,

Luiz,

Zhang

et al. 2023

Sustainability

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In a typical application scenario for electric aircraft, the emerging urban air mobility is faced with uncertain environmental conditions. To investigate the potential influence of uncertainties, this paper first develops comprehensive models of aircraft rigid body motion and electric propulsive performance. The urban environment model is built with emphasis on wind speed and the heat island effect. Thereafter, a flight guidance law augmented with nonlinear dynamic inversion is proposed to facilitate the performance evaluation of electric aircraft. Multiple simulations at various dates, times, and with different battery aging statuses are conducted. The results show that the battery aging effect and ambient temperature change are the most important factors that influence the aircraft performance. Suggestions to enhance the performance are given based on simulations.

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“…The ECM dynamics are represented by the following first-order ordinary differential equations (ODE) [25]:…”

Section: Equivalent-circuit Modelmentioning

confidence: 99%

Section: Equivalent-circuit Modelmentioning

confidence: 99%

Electric Flight in Extreme and Uncertain Urban Environments

Wang,

Luiz,

Zhang

et al. 2023

Sustainability

Self Cite

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show abstract

“…The ongoing situation of the climate and the importance of reducing emission enforce aircraft propulsion designers to find feasible ways to approach emission-free propulsions, 1 and electrified propulsion seems one of the best ways to decline the pollution of aircraft propulsions. 2,3 However, electrifying the aircraft propulsion confronts many challenges like providing electric sources with suitable weight, size, and durability and limitation of the performance that common electrical propulsion can offer [4,5,6].…”

Section: Introductionmentioning

confidence: 99%

A novel hybrid aircraft propulsion based on the DEA compressor—Part A: Design

Aryana¹

2021

Proceedings of the Institution of Mechanical Engineers, Part G:

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This two-part article introduces a novel hybrid propulsion system based on the DEA compressor. The system encompasses a Pulse Detonation TurboDEA as the master engine that supplies several full-electric ancillary thrusters called DEAThruster. The system, called the propulsion set, can be categorized as a distributed propulsion system based on the design mission and number of ancillary thrusters. Part A of this article explains the design process comprising intake, compressor, detonation process, diffuser, axial turbine, and the exit nozzle. The main target is to design a high-performance low emission propulsion system capable of serving in a wide range of altitudes and flight Mach numbers that covers altitudes up to 20,000 m and flight Mach number up to the hypersonic edge. Designing the propulsion set, the design point is considered at the static condition in the sea level. Design results show the propulsion set can satisfy all requirements necessary for its mission.

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“…1 Despite designing electrified propulsion seems one of the best ways to decline the pollution of aircraft propulsions, 2,3 electrifying the aircraft propulsions confronts many challenges like providing electric sources with suitable weight, size, and durability and limitation of the performance that common electrical propulsion can offer. 4,5,6 Currently, the only method to utilize electricity to generate thrust is to use electric motors to drive fans and propellers, and then all hybrid-electric and full-electric propulsions are confined in the bounds of these types of propulsions in the flight Mach number and altitude when their common electric sources like batteries are also not competitive based on the duration. 7,8 Overcoming challenges, reduction of energy usage, and energy source size and capacity are crucial.…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A novel full-electric aircraft propulsion based on the DEA compressor

Aryana¹

2021

Proceedings of the Institution of Mechanical Engineers, Part G:

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This article introduces a novel full-electric aircraft propulsion designed based on the DEA compressor, named DEAThruster that is supplied by a PEMFC. The thruster designed and modeled in this study is a compact DEAThruster to operate in altitudes up to 15,000 m and in the subsonic/transonic region with a specific thrust around 8300 N s/kg. The results show the thruster can satisfy all expectations, and it can generate up to 8300 N s/kg specific thrust for flight conditions encompassing static condition at sea level up to flight Mach number 0.95 in altitude 15,000 m. The DEAThruster can potentially be a practical alternative for gas turbine propulsions in all aspects when all available options for full-electric propulsions are not competitive for conventional aircraft propulsions in performance, size, and weight.

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Battery package design optimization for small electric aircraft

Cited by 21 publications

References 13 publications

Electric Flight in Extreme and Uncertain Urban Environments

Electric Flight in Extreme and Uncertain Urban Environments

A novel hybrid aircraft propulsion based on the DEA compressor—Part A: Design

A novel full-electric aircraft propulsion based on the DEA compressor

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