Cooling architecture for a cryogenic and superconducting powertrain using liquid hydrogen on board and method for managing the cooling temperature of the powertrain components

A cryogenic and superconducting powertrain comprising:

• at least one superconducting e-motor including a motor shaft,
• at least one motor control unit configured to control functioning aspects of the at least one superconducting e-motor,
• a propeller lead by the at least one superconducting e-motor,
• a gearbox, arranged between the at least one superconducting e-motor and the propeller, and configured to control a rotating speed of the motor shaft,
• at least a superconducting distribution and protection device,
• at least a fuel cell, which comprises a DC power supply,
• main current leads to the fuel cell,
• at least a DC/DC converter to adapt voltage levels between the superconducting distribution and protection device and the main current leads, wherein the main current leads and the superconducting distribution and protection device have different working voltage levels,
• a Thermal Management System for managing a temperature of the fuel cell, and,
• a cooling architecture comprising:
• a liquid hydrogen (LH2) tank for LH2 storage at cryogenic temperature,
• LH2 circulation pipes starting and ending at the LH2 tank,
• a first heat exchanger configured to exchange heat between a first fluid and a second fluid,
• a first cryostat of second fluid for cooling the motor control unit and the at least one superconducting e-motor,
• a second cryostat of second fluid for cooling the DC/DC converter, and
• second fluid circulation pipes, starting and ending at each cryostat.