Mission-Influenced Optimized Hybrid Propulsion Architectures for Aircraft

通过减少燃料消耗、排放、噪音和提高飞机性能，电动飞机推进有可能彻底改变航空航天工业。在过去的几年里，随着具有大量推进器和非常短任务的垂直起降飞机的发展，对这项技术的兴趣增加了。随着电池技术的成熟，混合动力推进系统被视为提高续航里程的推手，同时利用了电力推进系统的一些优势。在并联混合动力架构中，电动机用于从传统的燃气轮机及其推进系统中添加或提取动力。在串联混合动力架构中，推进系统由电动机驱动，电力由发电机和燃气轮机提供。本研究项目的重点是比较各种传统飞机的并联混合动力和串联混合动力推进结构，包括一架支线运输机（40架）、一架通勤飞机（8架）、一架现代旋翼飞机。对于每种类型的飞机，每种类型的推进架构都将进行优化和比较，以最大限度地减少燃油消耗或根据当前技术和未来技术完成预定任务的直接运营成本。将开发一个系统级的任务模拟来分析飞机在每个任务阶段的性能。虽然根据航程或续航时间定义了目标任务，但优化过程也会改变任务剖面，包括巡航高度和爬升/下降剖面，以最大限度地发挥混合动力推进动力系统的优势。**该研究项目将使工业合作伙伴受益，并确定最有前途的市场**，为更传统的飞机开发混合动力推进系统

Electric aircraft propulsion has the potential to revolutionize the aerospace industry, by reducing the fuel burn,**emissions, noise, and improve the aircraft performance. The interest for this technology has increased in the**last couple of years with the development of vertical take off and landing aircraft with a large number of**propulsors and very short missions. While the battery technology matures, hybrid-electric propulsion is seen as**an enabler to improve range, while taking advantage of some of the benefits from electric propulsion. In a**parallel-hybrid architecture, an electric motor is used to add or extract power from a conventional gas turbine**and its propulsion system. In a series-hybrid architecture, the propulsion system is driven by an electric motor,**and the electricity is provided by a generator and a gas turbine.**The focus of this research project is to compare parallel-hybrid and series-hybrid propulsion architecture for a**variety of conventional aircraft, including a regional transport aircraft (40 pax), a commuter aircraft (8 pax),**and a modern rotorcraft. For each type of aircraft, each type of propulsion architecture will be optimized and**compared to minimize fuel burn or direct operating cost for a predefined mission given today's technologies**and future technologies. A system-level mission simulation will be developed to analyze the aircraft**performance throughout each mission phase. While there is a target mission defined in terms of range or**endurance, the optimization process will also vary the mission profile, including cruise altitude and the**climb/descent profile to maximize the benefits of the hybrid propulsion powertrain.**This research project will benefit the industrial partner, with the identification of the most promissing market**for the development of hybrid propulsion for more conventional aircraft