Hall thrusters exhibit characteristic discharge voltage and current oscillations during steady-state operation. The lower frequency breathing-mode current oscillations are inherent to each thruster and could impact thruster operation and PPU design. The design of the discharge output filter, in particular, the output capacitor is important because it supplies the high peak current oscillations that the thruster demands. However, space-rated, high-voltage capacitors are not readily available and can have significant mass and volume. So, it is important for a PPU designer to know what is the minimum amount of capacitance required to operate a thruster. Through SPICE modeling and electrical measurements on the Hall Effect Rocket with Magnetic Shielding (HERMeS) thruster, it was shown that the harness impedance between the power supply and the thruster is the main contributor towards generating voltage ripple at the thruster. Also, increasing the size of the discharge filter capacitor, as previously implemented during thruster tests, does not reduce the voltage oscillations. The electrical characteristics of the electrical harness between the discharge supply and the thruster is crucial to system performance and could have a negative impact on performance, life and operation.


    Zugriff

    Zugriff über TIB

    Verfügbarkeit in meiner Bibliothek prüfen


    Exportieren, teilen und zitieren



    Titel :

    The Impact of Harness Impedance on Hall Thruster Discharge Oscillations


    Beteiligte:

    Kongress:

    International Electric Propulsion Conference ; 2017 ; Atlanta, GA, United States


    Erscheinungsdatum :

    01.12.2017


    Medientyp :

    Report


    Format :

    Keine Angabe


    Sprache :

    Englisch




    Effect of Discharge Oscillations on Hall Thruster Performance

    Yamamoto, N. / Nakagawa, T. / Komurasaki, K. et al. | British Library Conference Proceedings | 2002


    200W Hall Thruster Discharge Oscillations with Xe and Kr Propellant

    Liu, David / Huffman, Richard / Branam, Richard et al. | AIAA | 2011


    Evaluation and Active Control of Clustered Hall Thruster Discharge Oscillations

    Lobbia, R. B. / Gallimore, A. C. / American Institute of Aeronautics and Astronautics et al. | British Library Conference Proceedings | 2005



    External Discharge Hall Thruster

    KARADAG BURAK | Europäisches Patentamt | 2017

    Freier Zugriff