Low Mass, High Voltage Cables for Long Distance Lunar Power Distribution

In Phase II, Astrobotic has refined the outputs based on learnings in Phase I, and identified the following as the key outputs to achieve in the Phase II efforts: Refined design requirements for a cable assembly (including connector) in a mission environment. Focus will be on the cable and connector in lieu of the reel, based on findings in Phase I.nbsp; Cable design trade study modifications. Focus will be on manufacturing methods, unique materials, radiation and thermal design analysis, and minimization of mass while maximizing performance (frequency and throughput at a distance).nbsp; Cable manufacturer and connector manufacturer engagements and prototyping. Focus will be on manufacturing capabilities at long lengths with consistency, and connectors that can withstand the power levels and extreme environments.nbsp; Detailed designs for the cable, and connectors, to generate a complete cable assembly. Designs will be modified based on trade studies, and full assembly will be performed to allow for assembled testing.nbsp; Fabricated Prototypes (2 rounds) of Cables (1000ft each round) and Connectors Cable and connector test procedures and test results. Two sets of testing will be performed, including characteristic impedance, capacitance per unit length, high power efficiency throughput, dielectric breakdown, mechanical strength, accelerated life, EMI/EMC testing, and dusty thermal vacuum (TVAC) testing.nbsp; Analytical simulations of the cable design and correlation to test results. Simulations include LTSpice circuit simulations, ANSYS electromagnetic simulations, and analytical hand calculations. At the conclusion of these efforts, the high fidelity prototype cable assembly will have been tested in a relevant environment achieving TRL 6. This will address critical gaps in technology as identified by NASA,nbsp;assessing temperature swings and space radiation level analysis. This will ensure the cable technology supports up to 10kW power transfer with low mass materials.nbsp;