Speed sensorless hybrid field oriented and direct torque control of induction motor drive for wide speed range applications

M. Farasat, N. Rostami, M. Feyzi
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引用次数: 7

Abstract

This paper describes a control scheme of speed sensorless induction motor drive employing salient features of field oriented control (FOC) and direct torque control (DTC) methods. The proposed control system utilizes the advantages of the both FOC and DTC methods and at the same time eliminates their implementation difficulties. The performance of drive in the field weakening region is also studied. A control scheme for robust flux-weakening operation of motor drive is adopted. The basic idea is to adjust the flux reference on the basis of the q-axis stator current error, thus determining a spontaneous flux weakening. Simulation results show that the proposed control scheme is able to follow the reference speed with a reasonable dynamic and relatively low error.
无速度传感器的混合磁场定向和直接转矩控制感应电机驱动的宽速度范围的应用
本文介绍了一种利用磁场定向控制(FOC)和直接转矩控制(DTC)两种方法的显著特点的无速度传感器感应电机驱动控制方案。所提出的控制系统利用了FOC和DTC两种方法的优点,同时消除了它们的实现难点。研究了磁场减弱区的驱动性能。采用了一种电机驱动鲁棒弱磁运行控制方案。其基本思想是在q轴定子电流误差的基础上调整磁通基准,从而确定一个自发磁通减弱。仿真结果表明,所提出的控制方案能够以合理的动态和相对较小的误差跟随参考速度。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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