感应电机低速控制速度观测器的惯性辨识

Nam-Joon Kim, Hee-Sung Moon, Dong-Myung Lee, D. Hyun
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引用次数: 51

摘要

本文提出了一种基于瞬时速度观测器和惯性辨识的感应电机低速控制方法。当使用低分辨率增量式编码器进行速度检测时,我们只能得到编码器脉冲间隔之间的平均速度,这通常会使速度控制器在很低的速度范围内不稳定。因此,本文提出了一种低精度轴编码器的低速控制方法,其转速观测器实现了扰动转矩观测器。此外,为了提高速度控制器的性能,我们利用周期测试信号获得的估计惯量进行惯量辨识算法。仿真和实验结果表明,该方法优于传统方法。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Inertia identification for the speed observer of the low speed control of induction machines
This paper presents a control method of an induction machine in a low speed range with an instantaneous speed observer and inertia identification. When the low resolution incremental-type encoder is used for the speed detection we get only the average speed between the interval of the encoder pulses and it usually makes the speed controller unstable at the very low speed range. This paper, therefore, proposes a low speed control method using the low precision shaft encoder with speed observer implementing the disturbance torque observer. Furthermore, to improve the performance of the speed controller, we perform the inertia identification algorithm using the estimated inertia acquired by the periodic test signal. We show that this proposed method is superior to the conventional method by simulation and experimental results.
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