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Real-time in-situ measurement of inductively coupled power and numerical prediction of power distribution in RF ion thrusters

Volkmar, Chris and Neumann, Andreas and Geile, Christopher and Hannemann, Klaus (2017) Real-time in-situ measurement of inductively coupled power and numerical prediction of power distribution in RF ion thrusters. 35th International Electric Propulsion Conference, 08.-12. Okt. 2017, Atlanta, GA, USA.

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Official URL: https://iepc2017.org/

Abstract

We show a systematical approach to obtain the forwarded electrical power to sustain the plasma discharge in radio-frequency ion thrusters using a commercial current and voltage sensor system. With knowledge of the power directly at the coil, a numerical model delivers the power-to-thrust-ratio as weil as the distribution of power into several channels of loss, including collisions and structural eddy currents. With this work, we are, furthermore, able to distinguish between two phenomena that affect the power-to-thrust-ratio - one caused by the physics of the plasma itself and the other caused by the mismatch of the impedance bridge spanned between the electrical load of the thruster and the driving generator.

Item URL in elib:https://elib.dlr.de/114885/
Document Type:Conference or Workshop Item (Speech)
Title:Real-time in-situ measurement of inductively coupled power and numerical prediction of power distribution in RF ion thrusters
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Volkmar, Chrischris.volkmar (at) dlr.dehttps://orcid.org/0000-0002-5038-3834
Neumann, AndreasA.Neumann (at) dlr.deUNSPECIFIED
Geile, Christopherchristopher.geile (at) dlr.deUNSPECIFIED
Hannemann, Klausklaus.hannemann (at) dlr.deUNSPECIFIED
Date:2017
Refereed publication:No
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:RF ion thrusters, numerical simulation, power
Event Title:35th International Electric Propulsion Conference
Event Location:Atlanta, GA, USA
Event Type:international Conference
Event Dates:08.-12. Okt. 2017
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 - Simulation and Validation
Location: Göttingen
Institutes and Institutions:Institute for Aerodynamics and Flow Technology > Spacecraft, GO
Deposited By: Bachmann, Barbara
Deposited On:25 Oct 2017 14:47
Last Modified:13 Apr 2018 11:10

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