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RESEARCH PRODUCT

The Sequential Switching Shunt Maximum Power Regulator and its Application in the Electric Propulsion System of a Spacecraft

Enrique MasetE.s. KildersJose M. BlanesJuan B. EjeaJosé A. CarrascoAusias GarrigosA. FerrreresA.h. Weinberg

subject

EngineeringElectric power systemMaximum power principleElectrically powered spacecraft propulsionbusiness.industryPower electronicsPhotovoltaic systemElectrical engineeringVoltage regulatorbusinessMaximum power point trackingPower distribution unit

description

This paper describes a baseline solution of a Power Conditioning and Distribution Unit (PCDU) for Electrical Propulsion (EP) systems. The solution adopted uses two high efficiency, low-mass power regulators; a solar array regulator (SAR) based on the classical Sequential Switching Shunt Regulator with Maximum Power Point Tracking (MPPT) capability followed by a step-up converter to achieve the desired regulated bus voltage. This paper focuses on the first part of the PCDU, the Sequential Switching Shunt Maximum Power Regulator (S3MPR). This electrical architecture has been adapted and recently proposed for the Electric Propulsion power system of the European and Japanese Mercury Mission (BepiColombo). A scaled-down electrical model of the proposed system has been manufactured in order to prove the concept.

yearjournalcountryeditionlanguage
2007-01-012007 IEEE Power Electronics Specialists Conference
https://doi.org/10.1109/pesc.2007.4342195