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Evaluating the Energy Balance of High Altitude Platforms at Early Design Stages

Schopferer, Simon and Brizon, Mathilde and Liersch, Carsten M. and Froese, Sarah (2016) Evaluating the Energy Balance of High Altitude Platforms at Early Design Stages. In: 2016 International Conference on Unmanned Aircraft Systems, ICUAS 2016, pp. 170-177. ICUAS, 2016-06-09 - 2016-06-10, Arlington, VA, USA. doi: 10.1109/ICUAS.2016.7502577.

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Official URL: http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=7502577

Abstract

High altitude platforms, also known as pseudosatellites, are envisioned as unmanned aircraft flying at altitudes above 15 km to provide observation, remote sensing or communication services. A challenging yet recurring requirement for such aicraft is to be able to perform long-endurance missions over multiple days or even weeks. A sophisticated onboard energy management system including solar panels and batteries is needed to achieve this. The energy balance of such an aircraft depends on many factors which should be considered in the design process. In this work, we propose a systematic approach to evaluate the energy balance of high altitude platform designs for specific mission scenarios. This approach can be employed at very early design stages and incrementally extended to follow the design process. We demonstrate the methodology with an exemplary parameter study for a generic fixed-wing aircraft. In particular, the impact and correlations of the mission latitude, wind conditions, flight trajectory optimization, sizing of the platform and solar panel coverage of the main wing was evaluated. A key result is that battery mass can be reduced significantly, especially for missions at high latitudes, by optimizing the holding pattern that is flown throughout the mission or by increasing the solar panel coverage. Generally, the results indicate that the method allows to evaluate missionspecific effects on the energy balance of high altitude platforms.

Item URL in elib:https://elib.dlr.de/105286/
Document Type:Conference or Workshop Item (Speech)
Title:Evaluating the Energy Balance of High Altitude Platforms at Early Design Stages
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Schopferer, SimonUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Brizon, MathildeUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Liersch, Carsten M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Froese, SarahUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Date:10 June 2016
Journal or Publication Title:2016 International Conference on Unmanned Aircraft Systems, ICUAS 2016
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:No
DOI:10.1109/ICUAS.2016.7502577
Page Range:pp. 170-177
Status:Published
Keywords:High Altitude Platforms, Solar Powered Aircraft, Unmanned Aircraft Design
Event Title:ICUAS
Event Location:Arlington, VA, USA
Event Type:international Conference
Event Start Date:9 June 2016
Event End Date:10 June 2016
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:fixed-wing aircraft
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Systems and Cabin (old)
Location: Braunschweig
Institutes and Institutions:Institute of Flight Systems > Unmanned Aircraft
Institute of Aerodynamics and Flow Technology > Transport Aircraft
Institute of Composite Structures and Adaptive Systems > Composite Technology
Deposited By: Schopferer, Simon
Deposited On:19 Jul 2016 15:02
Last Modified:24 Apr 2024 20:10

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