霍尔推力器能量损失系统性评价方法

The typical physical processes and mechanisms affecting the efficiency of Hall thruster from the perspective of power loss analysis were studied. In addition，a systematic evaluation method for the power loss of Hall thruster was established. A new power loss system of Hall thruster was established from a standard of classification that took the final function objects and properties of power in the process of power conversion into account. The experimental evaluation method was established for each power loss. The experimental results show that thermal power deposited on the ceramic wall and anode，and radial plume kinetic power were the dominant factor causing efficiency loss of Hall thruster，which accounted for 5.2%，24.7% and 6.1%，respectively. Experimentally measured all output power to input anode power ratio reached 102.1%. Uncertainty analysis considered that the over-estimation of anode thermal deposition，ionization energy，cathode coupling loss was the main reason，but the relative magnitude of each power loss was certain. Experimental result checked the feasibility of the method，providing a new perspective for the evaluation of Hall thruster performance and design.