Fractional Order Linear Active Disturbance Rejection Control for Electro-hydrostatic Actuator of Ship Rudder

被引：0
|
作者：
Lü M. [1 ,2 ]
Xie H. [3 ]
Zhong W. [1 ]
Wan G. [3 ]
Tu C. [3 ]
机构：
[1] School of Mechanical Engineering, Jiangsu University of Science and Technology, Jiangsu, Zhenjiang
[2] Laboratory of Science and Technology on Marine Navigation and Control, China State Shipbuilding Corporation, Tianjin
[3] The Jiujiang Branch of 707 Research Institution, China State Shipbuilding Corporation, Jiangxi, Jiujiang
来源：
Binggong Xuebao/Acta Armamentarii | 2024年 / 45卷 / 05期
关键词：
electro-hydrostatic actuator; fractional order proportional derivative; linear active disturbance rejection; ship rudder;
D O I：
10.12382/bgxb.2022.0922
中图分类号：
学科分类号：
摘要：
In order to improve the disturbance rejection performance of electro-hydrostatic actuator (EHA) of ship rudder, a fusion control method based on linear active disturbance rejection control (LADRC) and fractional order proportional derivative (FOPD) control is proposed. The mathematical models of the drive motor and hydraulic system are established, respectively. On this basis, a linear extended state observer (LESO) is employed to estimate the total disturbances of EHA, including internal and external disturbances, under different operating conditions. The bounded stability of LESO is also proved. Furthermore, the FOPD control is used as the control law to actively suppress the estimated total disturbance, and the control parameters are determined by frequency response indicators such as shear frequency and phase margin. The joint simulation analysis of EHA model based on AMESim and Simulink shows that the displacement control accuracy of the proposed control method based on LADRC and FOPD is about 1mm when the ship speed is 6 kn or 8 kn. The self-developed EHA is used to build a semi-physical testing device, on which the reverse rudder and sudden reversal tests are carried out. The results show that the proposed control method has high speed and stability in tracking steering commands under load disturbances and sudden reversal situations. © 2024 China Ordnance Industry Corporation. All rights reserved.
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页码：1514 / 1522
页数：8
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