各推力级霍尔推力器研究现状与展望

Based on the introduction of the principle of Hall thruster，the influencing factors of Hall thruster thrust were deduced and analyzed，summarizing how to change Hall thruster thrust. The types of space missions applicable to different thrust levels，such as µN-level level，mN-level and N-level were summarized. The models of Hall thrusters at home and abroad were classified according to three levels，and the development and trend of each series of models of the three thrust levels were sorted out and analyzed respectively. The technical bottleneck and development trend were summarized and analyzed. Hall thrusters of various thrust stages were comprehensively and systematically reviewed. The results indicated that the mN-level was the most mature. With more abundant types of space missions，the µN-level level and N-level Hall thrusters had considerable development potential. The key technologies for the development of Hall Thrusters in each thrust stage were prospected. The results suggested that Hall Thrusters should improve the overall performance，expand the thrust coverage，strengthen the multi-mode working ability，develop hollow cathode and explore different propellants，thus providing a reference for the further development of Hall electric propulsion.