| 气动位置控制系统分数阶控制器的设计与仿真 |
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| 引用本文： | 赵彦楠,曾亿山,耿豪杰.气动位置控制系统分数阶控制器的设计与仿真[J].液压与气动,2019,0(7):134-141. |
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| 作者姓名： | 赵彦楠 曾亿山 耿豪杰 |
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| 作者单位： | 合肥工业大学机械工程学院， 安徽合肥230009 |
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| 基金项目： | 安徽省科技重大专项(16030901022) |
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| 摘 要： | 为了实现对气动伺服控制系统的准确位置控制,设计了气动伺服系统,根据系统的组成推导了其数学模型,并在此基础上进行线性化处理,计算出传递函数。继而设计了一种基于稳定裕度法整定参数的分数阶控制器,使用MATLAB的优化工具箱求解控制器参数并在Simulink中搭建分数阶控制器模型进行仿真分析。结果表明,使用稳定裕度法整定参数的分数阶控制器对气动伺服系统具有良好的控制效果,在系统参数发生较大变化时仍能达到理想的控制性能指标,系统仍具有良好的信号跟踪特性、强抗干扰能力和鲁棒性。实验测得采用分数阶控制器的气动伺服系统定位精度达到0.5 mm,系统具有较高的稳态精度。
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| 关 键 词： | 气动伺服 位置控制 数学模型 稳定裕度法 分数阶 |
| 收稿时间： | 2019-04-17 |
Design and Simulation of Fractional Frder Controller for Pneumatic Position Control System |
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| ZHAO Yan-nan,ZENG Yi-shan,GENG Hao-jie.Design and Simulation of Fractional Frder Controller for Pneumatic Position Control System[J].Chinese Hydraulics & Pneumatics,2019,0(7):134-141. |
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| Authors: | ZHAO Yan-nan ZENG Yi-shan GENG Hao-jie |
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| Affiliation: | School of Mechanical Engineering, Hefei University of Techonogy, Hefei, Anhui230009 |
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| Abstract: | In order to realize the accurate position control of pneumatic servo control system, the pneumatic servo system is designed firstly, and its mathematical model is deduced according to the composition of the system.On this basis, the linearization is processed and the transfer function is calculated. Then we design a fractional order controller which use the stability margin method to tune parameters.Use MATLABs optimization toolbox to solve five parameters and build a fractional order controller model to simulate in Simulink.The simulation results show that the fractional order controller with this method has good control effect, and can achieve the ideal control performance index when the system parameters change greatly. The system has good tracking characteristics, strong anti-interference ability and robustness.The positioning accuracy of the pneumatic servo system using Fractional order Controller is 0.5 mm,the system has high steady-state accuracy. |
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| Keywords: | pneumatic servo position control mathematical model stability margin method fractional order PIλDμ |
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