Control Algorithm for 6 kW Hall Thruster-Reference-Cited by-同舟云学术

Control Algorithm for 6 kW Hall Thruster

Published:2022-08-29 Issue: Volume: Page:
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Author:

Matsunaga Yoshiki¹,Watanabe Hiroki¹,Cho Shinatora¹,Funaki Ikkoh¹,Kusawake Hiroaki¹,Kajiwara Kazuhiro²,Kurokawa Fujio²,Takahashi Toru³

Affiliation:

1. Japan Aerospace Exploration Agency

2. Nagasaki Institute of Applied Science

3. Takahashi Denki Seisakusho Corporation

Abstract

Abstract This paper presents a control algorithm for ensuring the stable operation of a 6 kW Hall thruster. The Japan Aerospace Exploration Agency is developing a “wide-range” power processing unit (PPU) to power a 6 kW Hall thruster system, a candidate for all-electric satellites. The PPU provides discharge oscillation, power, and discharge current control. The increments in the control loop are fixed, so the PPU digital controller does not need to calculate them, and the algorithm's computational complexity is minimal. Results of integration tests on the 6 kW Hall thruster and the PPU breadboard model showed that the three control functions run correctly. The total controlled PPU power was adjusted in the range of 3.45–3.55 kW under constant power control with a target of 3.5 kW. Oscillations of ±0.05 kW around the target power are acceptable. Discharge oscillation control decreased the number of 0.1 ms segments with amplitudes exceeding 1.5 A from 700 to 0 by changing the coil current. The PPU successfully controlled the coil current, reducing the discharge current from 13.7 A to 13 A. The propulsion efficiency increased from 59% to 60.5%.

Publisher

Research Square Platform LLC

Reference26 articles.

1. “Dawn of the All-electric Satellite;Svitak A,2015

2. The Rise of the Electric Age for Satellite Propulsion;Lev DR;New Space,2017

3. Johnson IK, Kay E, Lee T, Bae R, Feher N (2017) “New Avenues for Research and Development of Electric Propulsion Thrusters at SSL,” 35th International Electric Propulsion Conference, IEPC-2017-400, Atlanta, USA, Oct.

4. Casaregola C (2015) “Electric Propulsion for Station Keeping and Electric Orbit Raising on Eutelsat Platforms,” 34th International Electric Propulsion Conference, IEPC-2015-97, Hyogo-Kobe, Japan, Jul.

5. Lev D, Myers RM, Lemmer KM, Kolbeck J, Keidar M, Koizumi H, Yu D, Schoenherr T, Gonzalez J, Choe W, Albertoni R, Hart W (2017) “The Technological and Commercial Expansion of Electric Propulsion in the Past 24 Years,” 35th International Electric Propulsion Conference, IEPC-2017-242, Atlanta, USA, Oct.