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European Direct-Drive Architecture

Project description

Electric propulsion innovation for future spacecraft

The European space sector supports innovative technologies to improve the performance of future spacecraft. The EU-funded EDDA project envisages the perfection of the power chain efficiency of a spacecraft with the use of electric propulsion (EP). This innovation directly supplies electric thrusters with solar EP without power conversion. EP uses electrical power to enhance the propulsive performances of the EP thrusters, obtaining better results than those of conventional chemical thrusters. The benefits of the innovation are considerable savings in volume and costs, removal of power converters, improvement of efficiency and decrease of thermal dissipation. The project will test the solution in real operational conditions to prove its adaptability to spacecraft.

Objective

The European Direct-Drive Architecture (EDDA) project aims at optimizing the power chain efficiency of a spacecraft using electric propulsion, which is at the heart of technological roadmaps for future spacecraft.

The objective is to develop, build and test a demonstrator of a high voltage and high power direct-drive concept.

This innovative architecture supplies directly electric thrusters by a 300V-400V Solar Array without power conversion vs 28-100V in the current state of the art. The advantages are to remove power converters, to save mass, dissipation and cost, and to improve significantly the overall efficiency and reduce the thermal dissipation. In addition, at satellite level, it corresponds to a reduction of thrust duration, saving mission time.

The ability of the concept to be applied to various thrusters technologies is key to maximize the impact of the architecture. Therefore this study is based on a transversal aspect of Electric Propulsion to be demonstrated on two different Electric Thruster technologies: Hall Effect Thruster (HET) from Sitael (Italy) and High Efficiency Multistage Plasma Thruster (HEMPT) from Thales-D (Germany).

EDDA demonstration is based on a thruster plasma analysis (UC3M, Spain). Cathod Reference Point electronics, HET, vacuum chamber for complete testing are provided by Sitael. The bus voltage control loop and associated hardware are designed and manufactured by TAS-B. Coordination at satellite level is performed by TAS-F. Efficient Innovation provides effective management and associated tools.

Tests will follow real operational conditions: no Sun, variation of illumination, thruster start-up and switch off, quick variation of consumption, and will demonstrate the robustness of this architecture easily adaptable to spacecraft (telecommunication satellites for Electric Orbit Raising reduction, In Orbit Servicing and Space-tugs, interplanetary carriers).

Fields of science (EuroSciVoc)

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Keywords

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Programme(s)

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Topic(s)

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Funding Scheme

Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.

RIA - Research and Innovation action

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Call for proposal

Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.

(opens in new window) H2020-SPACE-2018-2020

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Coordinator

THALES ALENIA SPACE FRANCE SAS
Net EU contribution

Net EU financial contribution. The sum of money that the participant receives, deducted by the EU contribution to its linked third party. It considers the distribution of the EU financial contribution between direct beneficiaries of the project and other types of participants, like third-party participants.

€ 235 483,75
Address
AVENUE JEAN FRANCOIS CHAMPOLLION 26
31100 Toulouse
France

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Region
Occitanie Midi-Pyrénées Haute-Garonne
Activity type
Private for-profit entities (excluding Higher or Secondary Education Establishments)
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Total cost

The total costs incurred by this organisation to participate in the project, including direct and indirect costs. This amount is a subset of the overall project budget.

€ 235 483,75

Participants (5)

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