BibTex format
@inproceedings{Fil:2024,
author = {Fil, P and Rosati, Azevedo E and Knoll, A},
title = {Investigation of transient behavior in water propelled hall-effect thruster},
url = {http://hdl.handle.net/10044/1/115896},
year = {2024}
}
RIS format (EndNote, RefMan)
TY - CPAPER
AB - Hall thrusters are rapidly becoming one of the most popular types of propulsion systems. With the introduction of the Starlink constellation and growing ambitions for constant presence in cis-lunar space as a goal of the Artemis program, the role of this propulsion system will be even more prominent. Despite the industry-wide adoption of Hall thrusters, understanding of their transient behaviour is still limited. Within the scope of this research, instabilities present in the 10-100 kHz frequency range are investigated for different typesof propellants. Comparison of thruster operation with krypton, oxygen and water as propellants provided the opportunity to determine the impact of different types of fuel on the thruster behavior and the conditions required for the onset of instability. It was determined, that different types of propellant have a varying threshold of voltage required for the instability to form, but it is present consistently for all cases under investigation.To properly explain the physics behind the instability, a 0D model of the thruster is developed and used to solve the dynamic behaviour. It was determined through simulation, that the thruster significantly interacts with the power supply, and it is necessary to consider the thruster coupled with the circuit to arrive at a proper solution. This was one of first attempts to develop a physics-based model of the thruster to apply in the full circuit modelling and its applicability was validated for thrusters operating with krypton, oxygen and water. The development of such models is of great importance for industry, as itenables more efficient design of filtering networks for onboard power supplies and direct drive modules, which would enable stable operation of thrusters, while fed directly from the solar panels.
AU - Fil,P
AU - Rosati,Azevedo E
AU - Knoll,A
PY - 2024///
TI - Investigation of transient behavior in water propelled hall-effect thruster
UR - http://hdl.handle.net/10044/1/115896
ER -