干线客机飞控系统的多电趋势分析

Trend of the More Electric Flight Control System on Large-Scale Airliners

作者以飞控系统为主要关注点,首先分析了波音和空客两大飞机公司在研的先进干线客机多电飞机的发展趋势,包括功率系统的多项革新、飞控系统体系结构的相应改变以及先进电功率作动器的使用情况等。然后,通过相关数据和资料的分析,阐述了多电飞机与传统混合多功率飞机相比在安全性、重量、维修性、生存性以及成本等方面所具有的优势。最后,简述了实现多电飞控系统的关键部件电功率作动器的发展历程及技术特征。

This paper focuses mainly on the flight control system for large-scale airliners.The trend of the more electric flight control system in A380,A350 and B787 is analyzed.The innovation in power systems,the new architecture for the flight control system and advanced Power-By-Wire(PBW) actuators are presented respectively.The advantage of the More Electric Aircraft(MEA) are explained according to relative data.Finally the PBW actuators such as EMA,EHA and EBHA,which play important roles in MEA,are introduced briefly.