mN stage thrust-continuously-adjustable electric propulsion system and method based on HEMPT thruster

The invention relates to an mN stage thrust-continuously-adjustable electric propulsion system and method based on an HEMPT thruster. The system comprises the HEMPT thruster, an electric propulsion control unit, a proportional flow storage and supply unit and a digitization adjustment power unit; the electric propulsion control unit is controlled under on-star control commands to generate two drive control signals, the first drive control signal is sent to the proportional flow storage and supply unit, and the second drive control signal is sent to the digitization adjustment power unit; meanwhile, the electric propulsion control unit collects a first telemetry signal fed back by the proportional flow storage and supply unit and a second telemetry signal fed back by the digitization adjustment power unit, and a telemetry package is formed to be sent to an external on-star computer; and the thruster generates mN stage thrust-continuously-adjustable thrust. The system has the beneficial effects of being simple,