基于<i>θ</i>-D方法的欠驱动TORA系统非线性最优控制

张宇; 李芦钰; 郭源博; 张晓华

doi:10.16383/j.aas.c180032

基于θ-D方法的欠驱动TORA系统非线性最优控制

doi: 10.16383/j.aas.c180032

张宇^1,,
李芦钰^2, ,,
郭源博^1,,
张晓华^1,

1.
大连理工大学电气工程学院大连 116024
2.
大连理工大学土木工程学院大连 116024

基金项目:

国家自然科学基金项目 51377013

国家自然科学基金项目 51378093

详细信息

作者简介:
张宇大连理工大学电气工程学院博士研究生. 2016年获得大连理工大学电气工程学院硕士学位.主要研究方向为欠驱动系统控制, 结构振动控制.E-mail: hblwzy@163.com

郭源博大连理工大学讲师. 2012年获得哈尔滨工业大学博士学位.主要研究方向为电力牵引系统容错控制, 无功补偿, 谐波抑制. E-mail: gyb@dlut.edu.cn

张晓华大连理工大学教授. 1998年获得哈尔滨工业大学博士学位.主要研究方向为智能机器人与运动控制, 欠驱动系统控制, 电力电子系统非线性控制. E-mail: xh_zhang@dlut.edu.cn

通讯作者:
李芦钰大连理工大学副教授. 2008年获得哈尔滨工业大学博士学位.主要研究方向为结构振动控制, 智能材料与结构, 结构非线性振动.本文通信作者. E-mail: liluyu@dlut.edu.cn

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出版历程
- 收稿日期: 2018-01-15
- 录用日期: 2018-03-16
- 刊出日期: 2020-07-24

On the Nonlinear Optimal Control of TORA System Based on θ-D Approximation

ZHANG Yu^1
,,
LI Lu-Yu^{2
, ,},
GUO Yuan-Bo^1
,,
ZHANG Xiao-Hua^1
,

1.
School of Electrical Engineering, Dalian University of Technology, Dalian 116024
2.
School of Civil Engineering, Dalian University of Technology, Dalian 116024

Funds:

National Natural Science Foundation of China 51377013

National Natural Science Foundation of China 51378093

More Information

Author Bio:
ZHANG Yu Ph. D. candidate at the School of Electrical Engineering, Dalian University of Technology. He received his master degree from Dalian University of Technology in 2016. His research interest covers control of underactuated system, and structural vibration control

GUO Yuan-Bo Lecturer at the School of Electrical Engineering, Dalian University of Technology. He received his Ph. D. degree from Harbin Institute of Technology in 2012. His research interest covers fault tolerant control of electric traction system, reactive power compensation, and harmonic suppression

ZHANG Xiao-Hua Professor at the School of Electrical Engineering, Dalian University of Technology. He received his Ph. D. degree from Harbin Institute of Technology in 1998. His research interest covers intelligent robot and motion control, nonlinear control of underactuated system, and nonlinear control of power electronics system

Corresponding author: LI Lu-Yu Associate professor at the School of Civil Engineering, Dalian University of Technology. He received his Ph. D. degree from Harbin Institute of Technology in 2008. His research interest covers structural vibration control, smart material and structure, and nonlinear structural vibration. Corresponding author of this paper

摘要

摘要: 针对TORA (Translational oscillator with rotating actuator)系统的镇定控制问题, 提出一种基于$\theta $-D方法的非线性最优控制方案.应用拉格朗日方程建立TORA系统的数学模型, 为保证状态空间形式的TORA系统数学模型中状态向量系数矩阵$A(\pmb{x})$能够分离出常值矩阵, 且其能与控制位置矩阵构成可控对, 采用不同于传统形式的解耦坐标变换对TORA系统进行了处理, 以此为基础为TORA系统设计基于$\theta $-D方法的非线性最优控制器, 该控制方案可离线得到控制输入的显示表达式.通过数值仿真以及与基于局部线性化的线性最优控制方案进行比较, 验证了所提非线性最优控制方案所具有的良好瞬态性能.
- 具有旋转激励的平移振荡器 /
- 最优控制 /
- 坐标变换 /
- 非线性控制 /
- HJB方程
Abstract: A nonlinear optimal control scheme is proposed for the stabilization of TORA (Translational oscillator with rotating actuator) system based on $\theta $-D Approximation in this article. The mathematical model of the nonlinear TORA system is derived through using the Lagrange equations. A novel coordinate transformation is adopted to make it available to isolate a constant matrix from the coefficient matrix $ A({\pmb x})$, and make the constant matrix and the input location vector a controllable pair. The proposed nonlinear optimal control method does not require excessive online computations, as the explicit expression of control input can be derived in controller design phase. Numerical analysis demonstrate the effectiveness of the proposed method and its advantage in instant performance over the linear optimal control approach based on local linearization.
- Translational oscillator with rotating actuator (TORA) /
- optimal control /
- coordinate transformation /
- nonlinear control /
- Hamilton-Jacobi- Bellman (HJB) equation
Recommended by Associate Editor MEI Sheng-Wei
注释:

1) 本文责任编委梅生伟

HTML全文

图 1 TORA系统

Fig. 1 TORA system

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图 2 控制前后小车位移对比, 小车初始位移$q_{1}(0) = 0.1$ m, 小车初始转角$q_{2}(0) = 0$ rad

Fig. 2 Displacement responses of TORA system with initial condition [$q_{1}(0), q_{2}(0)] = [0.1$ m, 0 rad]

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图 3 施控时小球转角

Fig. 3 Angle of rotating mass under control

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图 4 控制转矩

Fig. 4 Control torque

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图 5 二次型性能指标时间导数

Fig. 5 Time derivative of quadratic cost function

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图 6 控制转矩做功

Fig. 6 Work done by control torque

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表 1 TORA系统参数

Table 1 Parameters of TORA system

M	10.235	kg
m	0.71	kg
r	0.05	m
J	0.001	kgm²
K	294.87	N/m

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