Enhanced Robust Control of the EMA system Based on High-Order Extended State Observer

被引：0
作者：
Tian, Liangbo [1 ]
Li, Yuren [1 ]
Xu, Xiang [1 ]
Liang, Bo [1 ]
Rao, Yun [1 ]
Zhang, Hongyu [1 ]
机构：
[1] Northwestern Polytech Univ, Sch Automat, Xian, Peoples R China
来源：
2022 25TH INTERNATIONAL CONFERENCE ON ELECTRICAL MACHINES AND SYSTEMS (ICEMS 2022) | 2022年
关键词：
electro-mechanical actuator; enhanced robust control; high-order ESO; super-twisting algorithm;
D O I：
10.1109/ICEMS56177.2022.9983397
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
The electro-mechanical actuator (EMA) is widely used in aircraft braking systems due to its high efficiency and high reliability. To improve the dynamic performance and the anti-interference ability of EMA, an enhanced robust control method based on the high-order extended state observer (ESO) is proposed in this paper. Firstly, the operating principle of the EMA system is analyzed and the mathematical model is built. Then, all the system uncertainties and external load variations are considered as the lumped disturbance. A high-order ESO is constructed to estimate the lumped disturbance, and the super-twisting (ST) algorithm is utilized to control the braking torque. Therefore, the composite controller can greatly improve the anti-disturbance ability of the EMA servo system. Finally, the effectiveness of the proposed controller is demonstrated by simulation results.
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页数：6
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