Effect of low-frequency oscillation on performance of Hall thrusters

Wei, Liqiu; LI, Wenbo; Ding, Yongjie; Yu, Daren

doi:10.1088/2058-6272/aabae0

Cited by 17 publications

(8 citation statements)

References 18 publications

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“…The total contribution to the thruster efficiency defined as a product of the above two coefficients, shows the increase up to 20%, compared to regimes without the external drive. Similar results trend was shown in recent work by Wei et al [40]; however, in their work amplification of the breathing mode was due to changes in thruster operating parameters.…”

Section: Discussionsupporting

confidence: 91%

Hall thruster operation with externally driven breathing mode oscillations

Romadanov

Raitses

Smolyakov

2018

Plasma Sources Sci. Technol.

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The discharge and plasma plume characteristics of the cylindrical Hall thruster were studied in regimes with external modulations of the applied voltage. It is found that the amplitude and the root mean square (rms) value of the discharge and ion currents increase with the amplitude of the external modulation exhibiting two different regimes. For smaller amplitudes of the modulation voltage, the oscillations amplitude and rms value of the discharge and ion currents follow the amplitude of modulations approximately linearly. For larger voltage modulations, the amplitude and the rms value of the discharge and ion currents grow faster and nonlinearly. In the nonlinear regime, the discharge and the ion currents demonstrate pronounced dependence on the frequency of the external modulations. Moreover, the rms value of the ion current is amplified stronger than the rms value of the discharge current resulting in an increase of the current utilization (of about 5%) and the propellant utilization efficiencies (of about 40%). The thruster efficiency, defined as a product of the current and propellant utilization coefficients, shows an increase of the about 20%. We also present the results of theoretical modeling of a plasma response to driven oscillations in a simplified 1D model of resistive-ionization mode in quasineutral plasma. This modeling demonstrates the nonlinear property of the fundamental breathing mode similar to the experimental results.

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Section: Discussionsupporting

confidence: 91%

Hall thruster operation with externally driven breathing mode oscillations

Romadanov

Raitses

Smolyakov

2018

Plasma Sources Sci. Technol.

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“…Low-frequency oscillation is an inherent property of the on-orbit motion of Hall thrusters. This oscillation can cause significant changes in the voltage with a change in the loop current [ 3 ].…”

Section: Introductionmentioning

confidence: 99%

Study on inversion method of wall erosion information of on-orbit Hall thruster based on low-frequency oscillation signals and neural networks

Han

Xie²,

Wang³

et al. 2022

Heliyon

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“…At present, the Hall thruster is the most widely used electric propulsion system in attitude control, station keeping, and orbit transfer due to the simple structure, moderate specific impulse, and high efficiency [1,2]. The current development direction is towards a Hall thruster with high efficiency, high reliability, high stability [3] and long life [4]. As in many types of Hall thrusters, the ATON-type Hall thruster has the characteristics of a large magnetic field gradient in the channel and a large curvature of magnetic field line, which can realize high ionization.…”

Section: Introductionmentioning

confidence: 99%

Simulation study on the influence of magnetic field in the near-anode region on anode power deposition of ATON-type Hall thruster

Su¹,

Li²,

Ding³

et al. 2020

Plasma Sci. Technol.

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The highest deposition of power and temperature is always near the cusp of the ATON-type Hall thruster. This shows that when there are electrons gathering at the cusp, the distribution of heat load will be uniform, which will potentially damage the reliability. Therefore, we optimize the magnetic field near the anode. We changed the magnetic field characteristics in the near-anode region with an additional magnetic screen, and performed numerical simulation with particle-incell simulation. The simulation results show that the magnetic field of the thruster with the additional magnetic screen can alleviate the over-concentration of power deposition on the anode and reduce the power deposition in the anode by 20%, while ensuring that the overall magnetic field characteristics do not change significantly.

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Effect of low-frequency oscillation on performance of Hall thrusters

Cited by 17 publications

References 18 publications

Hall thruster operation with externally driven breathing mode oscillations

Hall thruster operation with externally driven breathing mode oscillations

Study on inversion method of wall erosion information of on-orbit Hall thruster based on low-frequency oscillation signals and neural networks

Simulation study on the influence of magnetic field in the near-anode region on anode power deposition of ATON-type Hall thruster

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