双馈感应电机无速度传感器控制策略

Sensorless Control Strategy of Doubly Fed Induction Machine

提出了一种双馈感应电机(Doubly Fed Induction Machine,简称DFIM)无速度传感器控制策略。构建了一种以TMS320F2808为主控芯片的DFIM无速度传感器数字控制系统。该系统可根据实测定子电压和定、转子电流,应用坐标变换方式和简单乘除运算直接获得转子位置角度和转速,因此控制算法简便,易于实现。实验结果表明,该方法能够准确观测出转子位置角度和速度,使系统获得了良好的控制性能。

A position-sensorless control strategy of a doubly fed induction machine（DFIM）is described.A DFIM sensorless digital control system based on DSP TMS320F2808 is implemented,in which the algorithm needs only measured the stator voltage, the rotor and stator currents,the position and rotor speed can be achieved only with axis transformations,simple multiplication and division operation.The proposed algorithm is easy to design and implement.Experimental results indicate that the proposed method can precisely estimate the position and rotor speed, the system can achieve excellent control performance.