Neural network adaptive control algorithm for permanent magnet spherical motor
-
摘要: 介绍了具有三维位置检测功能的三自由度永磁球形电机工作原理及其运动控制方法.结合球电机结构特性,基于XYZ 欧拉角和拉格朗日方程建立了球电机运动学及动力学模型.为了解决动力学模型建模误差、摩擦力和外界干扰等对球电机工作性能的影响,设计了神经网络逼近模型,并将其应用于球电机的控制之中.仿真结果表明这种控制方法与传统方法相比可以有效提高球电机的抗干扰能力,在建模误差比较大的情况下仍可以保证球电机的运动精度,其结果可以为进一步的球电机精密运动控制理论研究和实验方案设计提供借鉴和参考.Abstract: A control method for a 3-DOF spherical motor was introduced. The 3-DOF spherical motor had three-dimensional orientation measurement ability. Considering the mechanical structure of the spherical motor, XYZ Euler angle was used for the construction of the kinematics model. The dynamic model was established by the Lagrange's equation. Because of the dynamic modeling error, friction and external disturbances, the approximation neural network system model was applied to the spherical motor's control. The simulation results show that comparing to the traditional method, the proposed method can significantly improve the motion performance. The results can serve as a basis for the future precision motion control research and experiment.
-
Key words:
- spherical motor /
- dynamical modeling /
- neural network adaptive control
-
[1] Yan L, Chen I M, Lim C K, et al.Design and analysis of a permanent magnet spherical actuator[J].IEEE/ASME Transactions on Mechatronics, 2008, 13(2):239-248 [2] Yan L, Chen I M, Lim C K, et al.Hybrid torque modeling of spherical actuators with cylindrical-shaped magnet poles[J].Mechatronics, 2011, 21(1):85-91 [3] Lee K M, Son H, Joni J. Concept development and design of aspherical wheel motor(SWM)[C]//International Conference on Robotics and Automation.Barcelona:IEEE, 2005:3652-3657 [4] Son H, Lee K M.Open-loop controller design and dynamic characteristics of a spherical wheel motor[J].IEEE Transactions on Industrial Electronics, 2010, 57(10):3475-3482 [5] Son H, Lee K M.Distributed multipole models for design and control of PM actuators and sensors[J].IEEE Transactions on Magnetics, 2008, 13(2):228-238 [6] Wang W, Wang J, Jewell G W, et al.Design and control of a novel spherical permanent magnet actuator with three degrees of freedom[J].IEEE/ASME Transactions on Mechatronics, 2003, 4(8): 457-468 [7] 王群京, 夏鲲, 孔凡让.永磁球形步进电机三维运动电流控制仿真分析[J].中国科学技术大学学报, 2007, 37(1):39-45 Wang Qunjing, Xia Kun, Kong Fanrang.Three degrees motion simulation of current control for the permanent magnet spherical stepper motor[J].Journal of University of Science and Technology of China, 2007, 37(1):39-45(in Chinese) [8] Wang Qunjing, Xia Kun.Switching control algorithm for the permanent magnet spherical stepper motor[J].Transactions of China Electrotechnical Society, 2008, 23(2):11-18 [9] Xia Changliang, Guo Chen, Shi Tingna.A neural-network-identifier and fuzzy-controller-based algorithm for dynamic decoupling control of permanent-magnet spherical motor[J].IEEE Transactions on Industrial Electronics, 2010, 57(8):2868-2878 [10] Murray R M, Li Z X, Sastry S S.A mathematical introduction to robotic manipulation[M].Boca Raton:CRC Press, 1994 [11] Zhang Liang, Chen Weihai, Yan Liang, et al.Trajectory planning and current control optim ization of three dof spherical actuator[C]//2011 IEEE/RSJ International Conference on Intelligent Robots and Systems.San Francisco:IEEE, 2011: 744-749 [12] Lee M J, Choi Y K.An adaptive neurocontroller using RBFN for robot manipulators[J].IEEE Transactions on Industrial Electronics, 2004, 51(3):711-717 [13] Wai R J, Chen P C.Robust neural-fuzzy-network control for robot manipulator including actuator dynamics[J].IEEE Transactions on Industrial Electronics, 2006, 53(4):1328-1349 [14] Jung S, Kim S.Hardware implementation of a real-time neural network controller with a DSP and an FPGA for nonlinear systems[J].IEEE Transactions on Industrial Electronics, 2007, 54(1):265-271 [15] 王耀南, 陈维.无速度传感器的感应电机神经网络鲁棒自适应控制[J].中国电机工程学报, 2008, 28(33):92-98 Wang Yaonan, Chen Wei. Speed sensorless neural network robust adaptive control for induction motors[J].Proceedings of the CSEE, 2008, 28(33):92-98(in Chinese) [16] Wang L, Chai T, Fang Z.Neural-network-based two-loop control of robotic manipulators including actuator dynamics in task space[J].Control Theory, 2009, 7(2):112-118 [17] Alma Y A, Edgar N S, Alexander G L.Real-time discrete backstepping neural control for induction motors[J].IEEE Transactions on Control Systems Technology, 2011, 19(2):359-366
点击查看大图
计量
- 文章访问数: 1483
- HTML全文浏览量: 158
- PDF下载量: 493
- 被引次数: 0