| 非线性反馈线性化最优控制在电液伺服系统中的应用 |
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| 引用本文： | 刘川来,周培培,张东栋.非线性反馈线性化最优控制在电液伺服系统中的应用[J].甘肃科学学报,2014,26(3):65-68. |
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| 作者姓名： | 刘川来 周培培 张东栋 |
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| 作者单位： | 青岛科技大学自动化学院,山东青岛,266042 |
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| 摘 要： | 针对电液伺服系统首先建立其数学模型,然后采用非线性系统中的微分几何方法,针对伺服系统中的非线性因素,进行精确线性化,并利用LQR(Linear Quadratic Regulator,LQR)理论和SIMULINK对其进行最优控制和仿真.实验仿真表明,应用该方法后系统的阶跃响应具有较高的线性度和稳定精度,系统的鲁棒性也得到进一步提升.
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| 关 键 词： | 电液伺服系统 非线性 精确反馈线性化 最优控制 |
Application of Optimal Control of Nonlinear Feedback Linearization to Electro-Hydraulic Servo System |
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| LIU Chuan-lai,ZHOU Pei-pei,ZHANG Dong-dong.Application of Optimal Control of Nonlinear Feedback Linearization to Electro-Hydraulic Servo System[J].Journal of Gansu Sciences,2014,26(3):65-68. |
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| Authors: | LIU Chuan-lai ZHOU Pei-pei ZHANG Dong-dong |
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| Institution: | (College of Automation and Electronic Engineering, Qingdao University of Science and Technology , Qingdao 266042, China) |
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| Abstract: | The mathematical model of the electro-hydraulic servo system was first established, the method of differential geometry in nonlinear systems was adopted for the accurate linearization of nonlinear factors in the system,and then the control of the system was optimized and simulated based on the LQR theory and SIMULINK. The simulation shows that by this method the step response of the system has higher linearity and stability and the robustness of the system has been further improved. |
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| Keywords: | Electro-hydraulic servo system Nonlinearity Accurate feedback linearization Optimal control |
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