Journey towards to “More-Electric” Aircraft: Technologies and challenges (2017/1/6 福岡工業大学)



■講 師: Dr. Puvaneswaran Arumugam
■ご所属: University of Nottingham

■演 題: Journey towards to “More-Electric” Aircraft: Technologies and challenges

■日 時: 平成 29年 1 月 6 日(金)16:20~17:50
■場 所: 福岡工業大学 E棟3階 Cultivation Site R2教室

■主 催: 福岡工業大学 大学院工学研究科

  Since the origin of aviation, air-planes have primarily been powered by carbon-based fuels which contain a lot of energy for their weight, and provide the vast power required to lift large commercial airliners and power the on-board during the journey. Growing concern over declining oil resources and increasing penalties on greenhouse gas emissions accelerate the development on high energy efficient systems to minimise the fuel consumption and carbon footprint. A first step is to develop more electric aircraft– jet-powered planes that maximise the use of electricity for all the other aircraft systems. The idea is to significantly reduce fuel consumption by improving energy efficiency. This can be done by introducing electrical systems to replace on-board hydraulic and pneumatic systems used to power the landing gear, brakes, flight controls and thrust reversers, as well as for cabin pressurization and to start the engines. Moving towards such a transformation of an electric aircraft’s systems increases the on board demand for electrical power by a considerable factor. For example, when moving towards more electric solutions, the starter-generator system needs to cater for the increased power demand, which is usually achieved by implementing a higher power starter-generator system. This automatically leads to an increase in the weight of the machine and its associated power electronics. The main challenges for any novel aerospace electrical system are of course torque density and reliability. A particular aspect of the more electric aircraft initiative is the increased need of power electronics, which also need to comply with the robustness and reliability requirements (traditionally reliability of power electronics has been the weak link of the electrical system).

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