基于离散MRAS的异步电机静态参数辨识

Discrete MRAS Based on Induction Motor Parameter Identification at Standstill

本文提出用电压型 ＩＧＢＴ逆变器供电的异步电机静态参数的离散 ＭＲＡＳ辨识方法。根据异步电机静态参数模型，以定子电流的参考输出导出了稳定的参数适应律，并在仿真研究的基础上讨论了基于离散ＭＲＡＳ的异步电机静态参数辨识的ＤＳＰ（ＴＭＳ３２０Ｃ５０）实现方法。通过仿真和实验证实了该方法对异步电机静态参数有较好的辨识精度和噪声适应性。

In this paper, the discrete model reference adaptive system is used to estimate the asynchronous motor parameter at standstill. From the IM state equations, the algorithm for identifying the IM parameters is derived. The design methodology such as te choice of test signal and initiative value of the gain matrix is given. Lastly, the simulations and experiments based on DSP(TMS320C50) is implemented to validate the good results of the IM parameter identification.