电动飞机电推进用永磁同步电机无传感器控制技术综述

随着绿色航空的发展和新能源技术的不断进步，电动飞机也得到了快速发展。作为电动飞机的核心，电推进系统也受到越来越多的关注。永磁同步电机（PMSM）凭借其功率密度大、效率高等优势成为电动飞机电推进系统的理想解决方案。由于不依赖位置传感器，永磁同步电机无传感器控制技术能够更好地满足电动飞机对高空复杂环境下高可靠性的要求。首先，对当前电动飞机推进用永磁同步电机无位置传感器控制的主要方法进行了总结和比较。其次，针对转子起始位置检测、低速起动以及中高速运行中的关键技术和难点进行了分析。最后，对目前研究中存在的问题进行了归纳，并对未来的发展进行了展望。

Review on Sensorless Control Technology of Permanent Magnet Synchronous Motor for Electric Aircraft Propulsion System

With the development of green aviation and the continuous progress of new energy technology, electric aircraft have also been developed rapidly. As the core of electric aircraft, the electric propulsion system is also achieving more and more attention. Permanent magnet synchronous motor (PMSM) has become an ideal solution for electric propulsion system of electric aircraft due to its high power density and high efficiency. As its independent of position sensor, the sensorless control technology of PMSM can better satisfy the requirement of high reliability under the high altitude and complex environment of electric aircraft. Firstly, the main methods of sensorless control of PMSM for electric propulsion system of electric aircraft is summarized and compared. Secondly, the key technologies and difficulties of sensorless control of PMSM are analyzed, including rotor starting position detection, low-speed startup, and medium and high-speed operation. Finally, the problems existing in the current research are summarized, and the future development is prospected.