基于超螺旋滑模观测器的同步磁阻电机无位置传感器控制
Position Sensorless Control of Synchronous Reluctance Motor Based on Super-twisting Sliding Mode Observer
颜亮亮 1茅宇1
作者信息
- 1. 江苏大学 电气信息工程学院,江苏 镇江 212013
- 折叠
摘要
针对同步磁阻电机(SynRM)铁心饱和以及交叉耦合效应引起的电感参数变化问题,传统基于滑模观测器(SMO)的无传感器控制方法所采用的定电感参数难以实现高性能控制,提出一种基于超螺旋滑模观测器(STASMO)的自适应电感无传感器控制策略,并给出所提控制方案的稳定性条件.通过有限元仿真获得静态下的电机磁链饱和数据,利用该数据对电机磁链饱和模型进行拟合,并将所得饱和模型应用于观测器中以实时自适应解决电感参数变化问题.最后,通过仿真验证了所提出的无位置传感器控制方法的有效性和优良的控制性能.
Abstract
To solve the problem of inductance parameter change caused by core saturation and cross-coupling effect of synchronous reluc-tance motor,the traditional sensorless control method based on sliding mode observer is difficult to achieve high performance control with fixed inductance parameter,an adaptive sensorless control strategy based on super-twisting sliding mode observer is proposed,and the stability con-ditions of the proposed control scheme are given.Static motor flux saturation data is obtained through finite element simulation,which can be used to fit the proposed motor flux saturation model.Then,the obtained saturation model is applyed to the observer to solve the problem of in-ductance parameter changes.Finally,the effectiveness and excellent control performance of the proposed sensorless control method are veri-fied by simulation.
关键词
同步磁阻电机/无位置传感器控制/磁路饱和/交叉耦合效应/超螺旋滑模观测器Key words
SynRM/position sensorless control/magnetic circuit saturation/cross-coupling effect/STASMO引用本文复制引用
出版年
2024
国家科技期刊平台
NSTL
万方数据