天津工业大学学报2026，Vol.45Issue(4)：53-61,9.DOI:10.3969/j.issn.1671-024x.2026.04.007
基于扰动观测的电励磁同步电机气隙磁场定向滑模控制
Air-gap-flux oriented sliding mode control of an electrically excited synchronous motor based on disturbance observer
摘要
Abstract
Aiming at the problem of fluctuation of speed and air-gap-flux linkage amplitude of electrically excited syn-chronous motor(EESM)under load disturbance under traditional air-gap-flux orientation,a sliding-mode control strategy of EESM based on load disturbance observation is proposed.Based on the model reference adap-tive system(MRAS),an air-gap-flux observer suitable for the full speed range is designed.Based on the math-ematical model of the m-t axis frame of the EESM,the limitations to deal with the load disturbance under the air-gap-flux orientation is analyzed,and the outer loop sliding mode controller of the speed and flux linkage is designed.In order to further improve the immunity of the system,the external load disturbance of the system and the change of the internal parameters of the motor are regarded as lumped disturbances,and the dynamic re-sponse of the system is improved by feedforward compensation of the stator current torque component through the load disturbance observer.The experimental results show that compared with conventional control strategies,the proposed scheme maintains more stable air-gap-flux amplitude under load disturbance.The speed fluctuation de-clines from 12%to 4%,and the steady-state recovery time shortens from 14.7 s to 5.1 s,which effectively im-proves system stability and dynamic response performance.关键词
电励磁同步电机(EESM)/气隙磁场定向/气隙磁链观测器/滑模控制/扰动观测器Key words
electrically excited synchronous motor(EESM)/air-gap-flux orientation/air-gap-flux observer/sliding-mode control/load disturbance observer分类
信息技术与安全科学引用本文复制引用
王志强,韩冬阳,金雪峰,谷鑫..基于扰动观测的电励磁同步电机气隙磁场定向滑模控制[J].天津工业大学学报,2026,45(4):53-61,9.基金项目
国家自然科学基金项目(52177055) （52177055）
