Developing the propulsion system for a hydrogen powered commercial passenger aircraft

纽卡斯尔大学参与了H2 Gear项目，重点是为H2 Gear全电动飞机开发电力网络。该项目将专门集中于开发飞机电网的保护系统，创建最佳的故障保护、重新配置和识别战略，以最好地保护电网免受故障的影响。飞机故障保护系统和认证尚未考虑到全电动飞机的故障保护，因为过去的商用飞机也在不同程度上依赖液压和机械系统。因此，考虑到车载网络的相互依赖性质和全电力系统中连锁故障的可能性，首先要确定对故障保护系统的要求。它应在保护系统的能力范围内，以检测何时发生故障、确定故障的性质及其位置、区分并执行正确的响应以隔离和消除故障。通过模拟，将调查这些策略在保护网络免受故障并最终确保飞机安全运行方面的有效性，以及物理实施这些设计并集成到其余系统中的可行性。

The Newcastle university involvement in the H2Gear project focuses on the development of the electrical network for the H2Gear all electric aircraft. This project will be specifically centred on the development of a protection system for the aircraft electrical network, creating optimal fault protection, reconfiguration and discrimination strategies designed to best protect the electrical network from faults. Aircraft fault protection systems and certification have not yet had to cater for fault protection for an all-electric aircraft as past commercial aircraft have also relied on hydraulic and mechanical systems to various extents. Therefore it is first important to establish the requirements for the fault protection system given the inter-reliant nature of on-board networks and the potential for cascading faults in a fully electric system. It should be within the capacity of the protection system to detect when a fault is occurring, determine the nature of the fault and its location, discriminate and execute the correct response to isolate and eliminate faults. Through simulations the effectiveness of these strategies in protecting the network from faults and ultimately ensuring the safe operation of the aircraft will be investigated, as will the practicalities of physically implementing these designs and integrating into the rest of the systems.