In this thesis, "Design & Reliability Assessment of AEA Propulsion Grid", the development of a reliable and efficient propulsion grid for All-Electric Aircraft (AEA) is investigated to reduce aviation emissions. Our primary objective is to design a lightweight Power Management and Distribution (PMAD) system that meets stringent reliability standards. By analyzing materials, heat transfer, and grid design, we propose optimized grid topologies that balance weight and reliability. The findings emphasize the importance of redundancy and suggest further research into subcomponent failure rates, control aspects, and real-world testing to enhance system reliability and performance. This thesis provides valuable insights into the future of electric aviation, highlighting the necessity for continued investigation and practical application to ensure ultra-reliable electric propulsion systems and make zero-emission flight a reality.

As the need for both clean electricity and reduction of carbon emission rises, all-electric airplanes have the potential to reshape the field of aviational transport to fit this need. The development of such airplanes necessitates the advancement of highly reliable and efficient electrical systems, among which circuit breakers play a critical role. This paper investigates design considerations and challenges associated with circuit breakers for all-electric aircraft. The study explores possible circuit topologies that are capable to interrupt a 3 kV and 500 A power flow when a fault in the system causes a short circuit. Through simulations and experimental validations, the paper aims to propose an optimised circuit breaker design that enables reliable electric power systems in all-electric aircraft.