说明：  老外写的直接转矩控制+空间矢量的内置永磁体电机无传感器控制的文章
(This paper proposes an implementation of a motion sensorless control system in wide speed range based on “active flux” observer, and direct torque and flux control with space vector modulation (DTFC-SVM) for the interior permanent magnet synchronous motor (IPMSM), without signal injection.)