Research on model-free adaptive control of electro-hydraulic servo system of continuous rotary motor
Research on model-free adaptive control of electro-hydraulic servo system of continuous rotary motor
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DOI：
10.1109/access.2022.3160830
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发表时间：
2022
期刊：
影响因子：
3.9
通讯作者：
Xiaojing Wang;Yang Zhang;C. Li
中科院分区：
文献类型：
--
作者：
Xiaojing Wang;Yang Zhang;C. Li
针对连续回转电液伺服马达的摩擦、泄漏和噪声等不确定性，提出了一种无模型自适应控制器。用通用模型代替电液伺服马达系统的模型，将结构自适应控制和参数自适应控制相结合，利用系统的输入输出数据设计马达系统的MFAC控制器，实现马达系统的低速跟踪控制。仿真和实验证明，与传统PID控制相比，MFAC控制器有效地提高了电液伺服系统的低速稳定性和抗干扰能力，拓宽了系统的频率响应，实现了连续回转电机伺服系统的精确控制。
The model-free adaptive controller (MFAC) for continuous rotary electro-hydraulic servo motor was proposed to deal with uncertainties such as friction, leakage and noise. The model of electro-hydraulic servo motor system was replaced by universal model, and the structure adaptive control and parameter adaptive control were combined, and MFAC controller of the motor system was designed by using the input and output data of the system to realize the low speed and tracking control of the motor system. It is proved by simulation and experiment that MFAC controller effectively improves the low-speed stability and anti-interference ability of electro-hydraulic servo system compared with traditional PID control, and MFAC controller widens the frequency response of the system and realizes the precise control of continuous rotary motor servo system.