Abstract:For nonlinear high coupling two motor variable frequency systems (TMVFS), the dynamical BP neural network is firstly used to approximate to generalized inverse system of original system, then an internal model control (IMC) based on generalized inverse system method is proposed to this pseudo-linear system. Stability and robustness of the closed-loop system are proved, and its performances are analyzed. Finally, some relative experimental researches based on S7-300 PLC are studied. The results demonstrate that decoupling control with open-loop stability can be reached by neural network generalized inverse (NNGI) system method and the control performance of system can be ensured by inducting internal model control to subsystems.
刘国海, 杨官学, 沈跃, 陈兆岭. 基于神经网络广义逆的两电机变频系统内模控制[J]. 电工技术学报, 2010, 25(11): 56-61.
Liu Guohai, Yang Guanxue, Shen Yue, Chen Zhaoling. Internal Model Control of Two Motor Variable Frequency Systems Based on Neural Network Generalized Inverse. Transactions of China Electrotechnical Society, 2010, 25(11): 56-61.
[1] 李春元, 冯员锟.多变量非线性控制的逆系统方法[M].北京:清华大学出版社, 1991. [2] 戴先中, 刘国海, 张兴华.交流传动神经网络逆控制[M].北京:机械工业出版社, 2007. [3] Wang Qingguo, Zhang Yu, Chu Minsen. Decoupling internal model control for multivariable system with multiple time delays[J]. Chemical Engineering Science, 2002, 57:115-124. [4] Muramatsu E, Watanabe K. Adaptive internal model control of MIMO systems[C]. SICE 2003 Annual Conference, 2003, 3:2681-2685. [5] 宋夫华, 李平.基于支持向量机α阶逆系统方法的非线性内模控制[J].自动化学报, 2007, 33(7):108-111. Song Fuhua, Li Ping.Nonlinear internal model control based on support vector machine αth-order inverse system method[J].Acta Automatica Sinica, 2007, 33(7):108-111. [6] 陈庆伟, 吕朝霞, 等.基于逆系统方法的非线性内模控制[J].自动化学报, 2002, 28(5):45-51. Chen Qingwei, Lü Zhaoxia, et al. Nonlinear internal model control based on inverse system method [J].Acta Automatica Sinica, 2002, 28(5):45-51. [7] 戴先中, 刘国海.两变频调速电机系统的神经网络逆同步控制[J].自动化学报, 2005, 31(6):890-899. Dai Xianzhong, Liu Guohai.Neural network inverse synchronous control of two-motor variable frequency speed-regulating system[J].Acta Automatica Sinica, 2005, 31(6):890-899. [8] 刘国海, 张浩, 戴先中.神经网络逆系统在电机变频调速系统中的应用[J].电工技术学报, 2003, 18(3):68-72. Liu Guohai, Zhang Hao, Dai Xianzhong.The application of artificial neural network inverse system in speed control of AC variable frequency induction motor system[J]. Transactions of China Electro- technical Society, 2003, 18(3):68-72. [9] Liu Guohai, Liu Pingyuan. Experimental research on decoupling control of multi-motor variable frequency system based on neural network generalized inverse[C]. 2008 IEEE International Conference on Networking, Sensing and Control, 2008:1476-1479. [10] 何丹, 戴先中, 等.神经网络广义逆控制[J].控制理论与应用, 2002, 19(1):35-41. He Dan, Dai Xianzhong, et al.Generalized ANN inverse control method[J]. Control Theory & Applications, 2002, 19(1):35-41. [11] 朱瑞军.非线性系统状态估计和控制中的若干问题的研究[D].南京:南京理工大学, 2000.