Title :
New High Power / High Voltage Battery-Free Bus for Electrical Propulsion in Satellites
Author :
Maset, E. ; Sanchis-Kilders, E. ; Ejea, J.B. ; Ferreres, A. ; Jordán, J. ; Esteve, V. ; Garrigós, A. ; Carrasco, J.A. ; Blanes, J.M. ; Weinberg, A.H.
Author_Institution :
E.T.S.E. / Univ. de Valencia, Burjassot
Abstract :
In this paper a solution for the power conditioning and distribution unit (PCDU) of the solar electric propulsion module (SEPM) is proposed. The electronic propulsion system is made out of ion thrusters which need a very steady supply voltage and therefore care has to be taken during switch off of the ion thrusters (beam-out) to avoid transient overvoltages (they must be less than 2%). The new conception is a new sequential switching shunt maximum power regulator (S3MPR) consisting in a sequential switching shunt regulator (S3R), to keep the SA voltage at its maximum power point (MPP) followed by a boost regulator to produce a constant 100 V to supply the electronic propulsion (EP). The PCU has been verified by means of testing on a scaled-down Power Subsystem of 1 kW output power.
Keywords :
electric propulsion; solar power satellites; battery free bus; electrical propulsion; electronic propulsion system; high power; high voltage; ion thrusters; maximum power point; power 1 kW; power conditioning and distribution unit; satellites; scaled down power subsystem; sequential switching shunt regulator; solar electric propulsion module; voltage 100 V; Chemicals; Mercury (planets); Planetary orbits; Propulsion; Regulators; Satellites; Space missions; Space vehicles; Sun; Voltage;
Conference_Titel :
Power Electronics Specialists Conference, 2007. PESC 2007. IEEE
Conference_Location :
Orlando, FL
Print_ISBN :
978-1-4244-0654-8
Electronic_ISBN :
0275-9306
DOI :
10.1109/PESC.2007.4342198
