基于超螺旋滑模算法的异步电机转子磁链观测器  

Rotor flux observer of asynchronous motor based on super-twisting sliding mode algorithm

作　　者：万昌晖 段纳 谢国超 刘宇昂 阚佳怡 WAN Chang-hui;DUAN Na;XIE Guo-chao;LIU Yu-ang;KAN Jia-yi(School of Electrical and Automation,Jiangsu Normal University,Xuzhou 221116,China;WuXi Xinje Electric Co.,Ltd,Wuxi 214072,China)

机构地区：[1]江苏师范大学电气工程及自动化学院,江苏徐州221116 [2]无锡信捷电气股份有限公司,江苏无锡214072

出　　处：《控制与决策》2025年第4期1154-1162,共9页Control and Decision

基　　金：国家自然科学基金项目(62173166);徐州市基础研究计划项目(KC22053)。

摘　　要：研究基于超螺旋滑模算法的异步电机转子磁链观测问题.根据异步电机电流模型,设计超螺旋算法下的转子磁链开环估计模型.为了提高该模型对于转子电阻及外部扰动变化的鲁棒性,对观测器中电机参数的不确定部分进行估计.进一步地,将观测器得到的转子磁链引到定子电流估计方程中,得到闭环结构,从而提高磁链观测精度和收敛速度.通过重构模型中待观测的中间变量,解决了传统观测器模型对于转子磁链求解时的积分漂移和初值误差问题.针对磁链与转子转速的耦合问题,通过处理扰动给出系统稳定的充分条件.最后通过仿真和实验结果验证所提出算法的可行性和有效性.This paper investigates the problem of rotor flux observation in asynchronous motors based on the supertwisting sliding mode algorithm.According to the asynchronous motor current model,we design the open-loop estimation model of rotor flux under the super-twisting algorithm.In order to improve the robustness of the model to rotor resistance and external perturbations,the uncertainty part of the motor parameters in the observer is estimated.Furthermore,the rotor flux obtained by the observer is introduced into the stator current estimation equation,a closedloop structure is constructed to improve the accuracy and convergence speed of rotor flux observations.By reconstructing the intermediate variables to be observed in the model,the problems of integral drift and initial value error are figured out on the traditional observer model for solving the rotor flux.For the coupling problem of flux and rotor speed,a sufficient condition for the stability of the system is given by dealing with the perturbation.Simulation and experimental results verify the feasibility and effectiveness of the algorithm in this paper.

关 键 词：交流异步电机 矢量控制 滑模观测器 超螺旋算法 转子磁链观测 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]