Research Status and Prospects of Low Power Hall Thruster
In order to effectively meet the complex requirements of deep space exploration mis-sions,especially in challenging tasks such as gravitational wave detection,there is an urgent need to improve the existing Hall thruster technology by miniaturization and low-power(power range 25～500 W).At present,the research on low-power Hall thrusters has made some progress both domestically and internationally,but there are still many technical problems and challenges.In this paper,five main types of low-power Hall thrusters,including annular Hall thrusters,curved-field Hall thrusters,cylindrical Hall thrusters,permanent magnet Hall thrusters and non-channel Hall thrusters,are analyzed in depth by comprehensive investigation of existing literature and research results.In the process of low power conversion,these thrusters face the technical difficulties such as low efficiency,long life and high reliability.In view of this,this paper not on-ly systematically analyzes these technical challenges,but also puts forward several feasible re-search directions and optimization strategies based on the current technical bottlenecks,aiming to promote the further development of low-power Hall thruster technology to better serve the future deep space exploration missions.It is hoped that through these studies,references and develop-ment suggestions will be provided for the future development of Hall thruster technology.
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