未建模动态增量补偿驱动的非线性<b>PID</b>控制及应用

张亚军; 魏萃; 柴天佑; 卢绍文; 崔东亮

doi:10.16383/j.aas.c190146

未建模动态增量补偿驱动的非线性PID控制及应用

doi: 10.16383/j.aas.c190146

张亚军^1,,
魏萃^1,,
柴天佑^{1, 2,},
卢绍文^1,,
崔东亮^1,

1.
东北大学流程工业综合自动化国家重点实验室沈阳 110819
2.
东北大学自动化研究中心沈阳 110819

基金项目: 国家自然科学基金(61773107, 61603168, 61866021, 61890924, 61833004, 61991402, 61473107), 流程工业综合自动化国家重点实验室开放基金(PAL-N201808)资助

详细信息

作者简介:
张亚军：东北大学讲师. 主要研究方向为非线性模糊自适应控制理论, 广义预测控制, 多模型切换控制, 智能解耦控制, 数据驱动控制, 智能控制系统的大数据建模, 工业过程大数据建模及其应用.E-mail: yajunzhang@mail.neu.edu.cn

魏萃：东北大学流程工业综合自动化国家重点实验室博士研究生. 主要研究方向为非线性控制, 机器人. 本文通信作者.E-mail: weicui@stumail.neu.edu.cn

柴天佑：中国工程院院士, 东北大学教授. IEEE Fellow, IFAC Fellow, 欧亚科学院院士. 主要研究方向为自适应控制, 智能解耦控制, 流程工业综合自动化理论、方法与技术.E-mail: tychai@mail.neu.edu.cn

卢绍文：东北大学流程工业综合自动化国家重点实验室教授. 主要研究方向为工业过程建模与仿真. 目前主要研究多尺度随机建模方法和可视化方法.E-mail: lusw@mail.neu.edu.cn

崔东亮：东北大学讲师. 主要研究方向为多目标优化, 列车调度优化, 数据分析.E-mail: cuidongliang@mail.neu.edu.cn

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- 被引次数: 0
出版历程
- 收稿日期: 2019-03-07
- 录用日期: 2019-06-09
- 网络出版日期: 2020-07-10
- 刊出日期: 2020-07-10

Un-modeled Dynamics Increment Compensation Driven Nonlinear PID Control and Its Application

1.
State Key Laboratory of Synthetical Automation for Process Industries, Northeastern University, Shenyang 110819
2.
Research Center of Automation, Northeastern University, Shenyang 110819

Funds: Supported by National Natural Science Foundation of China (61773107, 61603168, 61866021, 61890924, 61833004, 61991402, 61473107), and State Key Laboratory of Synthetical Automation for Process Industries (PAL-N201808)

摘要

摘要: 针对一类具有强非线性、机理不清且动态特性随不同运行条件而变化的复杂过程, 将基于数据的建模技术与基于模型的控制策略相结合, 提出了未建模动态及其未知增量补偿驱动的非线性PID控制方法. 所提的算法将一步超前最优控制策略应用于PID控制器的参数设计, 并结合非线性补偿技术进行综合设计, 从理论上给出了PID控制器参数以及非线性补偿器设计的一般原则和方法, 为解决传统PID控制器参数难于整定的问题提供了方法和途径. 在此基础上, 分析了闭环系统的稳定性和收敛性. 最后, 将所提的控制算法进行数值仿真实验以及Pendubot系统平衡控制的对比实验, 实验结果表明, 在Pendubot的精确摩擦力模型未知的情况下, 所提算法能有效地消除系统未知时变不确定性的影响, 并尽可能地减少Pendubot摆角的波动, 将摆角控制在规定的目标值范围内.
- 数据驱动 /
- 未建模动态增量 /
- PID控制器 /
- 稳定性 /
- Pendubot
Abstract: For a class of complex industrial process whose structure is unclear and the dynamic characteristics changing strongly with different operating conditions, unmodeled dynamics driven nonlinear PID control method is proposed in this paper, the algorithm combined the data modelling technologies and control strategy based on process model and is applied to the Pendubot balance control system. One step ahead of the optimal control strategy is used to design the parameters of the PID controller, which combined with the nonlinear compensation technology for integrated design. The general principle and method of choosing PID controller parameters and nonlinear compensator design are given theoretically, which provides ways and means to solve the problem that the traditional PID controller parameters are difficult to design. Then, the stability and convergence of the closed-loop system are analyzed. Finally, through the numerical simulation and the comparative experiment on Pendubot balance control system, the results show that the proposed algorithm can effectively eliminate the influence of the unknown time-varying uncertainty of the system when the accurate friction model of Pendubot is unknown, and reduce Pendubot angular fluctuations as far as possible, the swing angle is controlled within the specified target value range.
- Data driven /
- increment of unmodeled dynamics /
- PID controller /
- stability /
- Pendubot

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图 1 本文控制方法与文献[30]控制方法的仿真结果

Fig. 1 Simulation results of the control method in [30] and the proposed method

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图 2 Pendubot系统实验平台

Fig. 2 The experimental platform of the Pendubot system

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图 3 实验结果

Fig. 3 Experimental results

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表 1 性能评价

Table 1 Performance indexes

	绝对误差累积和	误差均方差
文献[30]	23 396.5	2.7
本文方法	8 156.1	1.8

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表 2 性能评价

Table 2 Performance indexes

	绝对误差累积和	误差均方差
常规PD	361.1	6.5
文献[30]	337.3	6.1
本文方法	204.3	4.2

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