基于MRAS技术在永磁同步电机控制中的应用  

MRAS-based Technology In Permanent Magnet Synchronous Motor Control System

作　　者：叶汉民[1] 时晓霞[1] 

机构地区：[1]广西桂林理工大学机械与控制工程学院,广西桂林541004

出　　处：《组合机床与自动化加工技术》2010年第4期68-71,共4页Modular Machine Tool & Automatic Manufacturing Technique

基　　金：广西研究生教育创新计划资助(2009105960811M23)

摘　　要：论文对基于无传感器MRAS技术在永磁同步电机控制系统中的应用进行阐述。以永磁同步电机的数学模型作为出发点,电机的转速为可调参数,通过电机的电流模型建立参考模型与可调模型。通过两个模型输出量的差值设计合适的自适应律来实时调节可调模型的待估参数,达到可调模型跟踪参考模型的目的。并根据超稳定性理论来保证系统和速度的渐进收敛性。在MATLAB/Simulink环境下实现基于MRAS技术永磁同步电机直接转矩控制系统的仿真。仿真结果表明,能够准确估计转子的速度和位置,系统具有较好的鲁棒性。This article elaborated MRAS-based sensorless applied on permanent magnet synchronous motor technology of control system. Permanent magnet synchronous motor with the mathematical model set a starting point, M otor speed was set to adjustable parameters, The current model of motor built up adjustable model and reference model. Two models of the difference output was designed appropriate adaptive law to realtime adjustment of the adjustable model of parameters to be estimated. Adjustable model which achieved the purpose of tracking the reference model. In accordance with the super-stability theory guaranteed system and the Gradual convergence of speed. In M ATLAB/Simulink environment M RAS-based technology of permanent magnet synchronous motor control system.The simulation results showed that the sytem was able to accurately estimate the rotor speed and position, The system had good robustness and performance.

关 键 词：永磁同步电机 MRAS技术 稳定性 自适应律 

分 类 号：TP301.2[自动化与计算机技术—计算机系统结构]