【摘要】 永磁同步电动机的定子电阻和电感受环境影响产生变化,影响矢量控制系统的控制精确度。针对这个问题设计了基于POPOV超稳定性定理的参数辨识系统,该系统能辨识出凸极式永磁同步电机交轴、直轴电感以及电阻的取值,和在运行过程中发生的变化。在转速电流双闭环系统中,辨识模块将电感和电阻等电参数实时反馈到转速和电流控制器进行控制量的计算。仿真结果表明,辨识系统能辨识出电参数取值和发生的变化,对提高矢量控制系统的性能有帮助。更多还原

【Abstract】 A stator resistance and inductance identification scheme based on Popov hyperstability theory was proposed,in order to solve the affection on stability and precision of PMSMs due to the variation of stator electrical parameters.The observer was used to realize estimation of stator electrical parameters and compensation the variance online in PMSM governing system.The simulation result indicate that the identification strategy is capable of estimating the values of electrical parameters effectively and accurately,and improve the static and dynamic performance of PMSM drive system.更多还原