在低速时，定子电阻对定子磁场定向控制影响较大。
In low speed, stator resistance directly affects the performance of stator flux oriented control system.
本文在查阅了大量文献资料后，采用了基于定子磁场定向控制和自适应低通滤波器的无速度传感器算法，并进行了大量的仿真、编程和实验工作。
This paper adopted the sensorless control scheme based on stator field oriented control and adaptive low-pass filter theory. and carried out simulation, program, and experiment works.
定子磁场定向的直接转矩控制逐渐被广泛应用于高性能异步电机调速系统。
The stator flux-oriented direct torque control is widely used in high performance motion control of induction motors.
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