Evaluation of the Qucs Software for MSR-ERO Electric Propulsion Power Processing Assembly Modelling and Design Check

This paper intends to describe the activity of electrical chain modelling and validation by simulation of the MSR-ERO PPS subsystem. The electrical chain modelling comprises, on one hand, the thruster assembly modelling, the PPU-to-thruster-assembly modelling and the PPU-supplies modelling. On the other hand, the XFCU (Xenon Flow Control Unit) modelling is also comprised. The analyzes also focus on modelling of the thruster start-up waveforms as well as modelling of the beam-out event waveforms. Various simulations are performed to check the modelling with respect to expected electrical behaviour of the thruster. It shall be noticed that the activity is ongoing and will generate further updates as the execution of coupling tests and processing of the associated measurement data will be performed.