摘要
液压伺服系统由于控制精度高、功率密度大受到广泛应用,但其自身在运行中存在较大的扰动和非线性,使其精确位置控制存在一定的难度。自抗扰控制器(ADRC)是一种新型的控制器,它对于强不确定性和非线性有较好的控制能力,但它是一个多参数非线性控制器,其优化设计的难度远远高于PID等传统控制器。提出一种改进差分进化算法,使用了一种新型的目标函数,并将其应用在液压伺服系统的自适应自抗扰控制器设计中。仿真实验结果证明:改进差分进化算法相比较于其他方法具有更强的全局搜索能力,设计的自抗扰控制器能更好地适应液压伺服控制的需要。
Hydraulic servo system has been widely used because of its high control precision and high power density. However, it has large disturbance and nonlinearity in real-world operation, its precise position control is difficult. Active disturbance rejection controller(ADRC) is a new type of controller, which has good control ability under strong uncertainty and nonlinearity, but ADRC is a multi-parameter nonlinear controller, its design is much more difficult than PID and other traditional controllers.An improved differential evolution algorithm was proposed. A new objective function was used in the design of adaptive active disturbance rejection controller for hydraulic servo system. The simulation results show that the improved differential evolution algorithm has stronger global search ability than other methods, and the designed ADRC can meet the needs of hydraulic servo control.
作者
陈鑫
李东
曾冰
CHEN Xin;LI Dong;ZENG Bing(College of Mechanical&Electrical Engineering,Wuhan Business University,Wuhan Hubei 430056,China;Wuhan City Vocational University,Wuhan Hubei 430000,China;Wind Power Research Institute,Xiangdian Wind Energy Co.,Ltd.,Xiangtan Hunan 411100,China)
出处
《机床与液压》
北大核心
2021年第23期92-97,共6页
Machine Tool & Hydraulics
基金
2018湖北省教育厅科研计划项目(B2018269)
2019湖北省教育厅科学技术研究项目(B2019434)。
关键词
液压伺服系统
扰动
非线性
自抗扰控制器
改进差分进化算法
Hydraulic servo system
Disturbance
Nonlinearity
ADRC
Improved differential evolution algorithm
