多电飞机电力系统及其关键技术

Electric Power System and Key Technologies of More Electric Aircraft

多电飞机将机载二次能源逐步统一为电能,有效提高了飞机的燃油经济性、可靠性和维护性,已成为航空科技发展的重要方向。作为机载二次能源系统的核心,电力系统在多电飞机发展过程中起到了关键支撑作用。电力系统及其关键技术的创新发展是实现飞机综合性能提升和全局优化的必要基础。本文从多电飞机的基本概念与特点出发,分析对比了典型多电飞机的电力系统架构,在此基础上系统地总结了支撑多电飞机电力系统发展的关键技术,讨论了未来多电飞机电力系统高压、直流和智能化的发展趋势。

The secondary energy on board has been gradually replaced by electrical power in more electric aircraft,effectively improving the fuel economy,reliability and maintainability of the aircraft,and has become an important direction of the aviation technology.As the core of the secondary energy system on board,the power system plays a key supporting role in the development of more electric aircraft.The innovative development of the power system and related technologies are the necessary basis to realize the improvement and global optimization of the aircraft comprehensive performance.Based on the concepts and characteristics of more electric aircraft,this paper analyzes and compares the electric power system architecture of three typical more electric aircraft,summarizes the key technologies supporting the development of more electric aircraft electric power system,and discusses the development trend of high voltage,direct current and intelligent more electric aircraft electric power system in the future.