Modeling and EMC analysis of a PPU for ion thrusters in the space environment

Electric propulsion, particularly electrostatic propulsion, is becoming increasingly important in space exploration due to its high specific impulse and low propellant consumption, which are critical factors for long lasting missions. However, testing such propulsion systems presents significant challenges, as they require specialized environmental conditions and dedicated testing facilities. This thesis, under the supervision of Thales Alenia Space, provides a comprehen- sive analysis of ion thruster physics, the key technical challenges associated with this technology and of all the modeling theory behind the various kinds of simulations that could be conducted on ion thrusters. A particular focus is given to the study and simulation of electromagnetic emissions and compatibility issues, which are crucial to ensure reliable operation in space. Specifically, this research examines the Power Processing Unit (PPU), a fundamental component whose objective is that to supply the Electric Propulsion System with the required electrical power, amongst the other secondary objectives. To address these challenges, this work explores the feasibility of using simulation environments, in this case CST Studio is the selected simulation environment, as an alternative to traditional ground testing, potentially reducing costs and qualification time. The thesis aims to model and analyze both conducted and radiated emissions of an Electrostatic Propulsion System using CST Studio.