Abstract：In the process of iterative learning control (ILC) of the servo system driven by permanent magnet linear synchronous motor (PMLSM), the accumulation of tracking error would lower convergence rate or even system divergence. In this paper, a closed-loop ILC controller was designed, and then a method that combined empirical mode decomposition (EMD) algorithm with ILC was adopted to decompose the tracking error in ILC. Then the divergent components were screened and eliminated. Accordingly, the convergence of ILC was guaranteed, and the convergence rate was improved. The simulation and experimental results show that, compared with the traditional ILC, the presented method can produce better tracking results, and guarantee that the output trajectory track the anticipant trajectory quickly and precisely with fewer iterations.
王丽梅, 孙璐, 初升. 基于经验模态分解算法的永磁直线同步电机迭代学习控制[J]. 电工技术学报, 2017, 32(6): 164-171.
Wang Limei, Sun Lu, Chu Sheng. Iterative Learning Control of Permanent Magnet Linear Synchronous Motor Based on Empirical Mode Decomposition Algorithm. Transactions of China Electrotechnical Society, 2017, 32(6): 164-171.
[1] Lim H S, Krishnan R. Ropeless elevator with linear switched reluctance motor drive actuation systems[J]. IEEE Transactions on Industrial Electronics, 2007, 54(4): 2209-2218. [2] Wu J H, Xiong Z H, Lee K M, et al. High- acceleration precision point-to-point motion control with look-ahead properties[J]. IEEE Transactions on Industrial Electronics, 2011, 58(9): 4343-4352. [3] 张鲁, 寇宝泉, 赵斌超, 等. 新型Halbach次级结构永磁直线同步电机[J]. 电工技术学报, 2013, 28(7): 1-7. Zhang Lu, Kou Baoquan, Zhao Binchao, et al. A novel synchronous permanent magnet linear motor with Halbach secondary structure[J]. Transactions of China Electrotechnical Society, 2013, 28(7): 1-7. [4] 张聪, 许晓慧, 孙海顺, 等. 基于自适应遗传算法的规模化电动汽车智能充电策略研究[J]. 电力系统保护与控制, 2014, 42(14): 19-24. Zhang Cong, Xu Xiaohui, Sun Haishun, et al. Smart charging strategy of large-scale electric vehicles based on adaptive genetic algorithm[J]. Power System Protection and Control, 2014, 42(14): 19-24. [5] 韩雪岩, 祁坤, 张哲, 等. 永磁同步直线电机磁阻力分析及抑制措施[J]. 电工技术学报, 2015, 30(6): 70-76. Han Xueyan, Qi Kun, Zhang Zhe, et al. Analysis and suppression measures of magnetic resistance force in permanent magnet linear synchronous motors[J]. Transactions of China Electrotechnical Society, 2015, 30(6): 70-76. [6] 寇宝泉, 张赫, 郭守仑, 等. 辅助极一体式永磁同步直线电机端部定位力抑制技术[J]. 电工技术学报, 2015, 30(6): 106-113. Kou Baoquan, Zhang He, Guo Shoulun, et al. End effect detent force reduction for permanent magnet linear synchronous motors with auxiliary poles one-piece structure[J]. Transactions of China Electro- technical Society, 2015, 30(6): 106-113. [7] 陆华才, 徐月同, 杨伟民, 等. 永磁直线同步电机进给系统模糊PID控制[J]. 电工技术学报, 2007, 22(4): 59-63. Lu Huacai, Xu Yuetong, Yang Weimin, et al. Fuzzy PID controller design for a permanent magnet linear synchronous motor feeding system[J]. Transactions of China Electrotechnical Society, 2007, 22(4): 59-63. [8] 孙宜标, 杨雪, 夏加宽. 基于二阶滑模的永磁直线同步电机的鲁棒速度控制[J]. 电工技术学报, 2007, 22(10): 35-41. Sun Yibiao, Yang Xue, Xia Jiakuan. Robust speed control of permanent-magnet linear synchronous motor based on the second order sliding mode[J]. Transactions of China Electrotechnical Society, 2007, 22(10): 35-41. [9] 方晓春, 胡太元, 林飞, 等. 基于交直轴电流耦合的单电流调节器永磁同步电机弱磁控制[J]. 电工技术学报, 2015, 30(2): 140-147. Fang Xiaochun, Hu Taiyuan, Lin Fei, et al. Single current regulator flux-weakening control of PMSM based on current cross-coupling effect[J]. Transa- ctions of China Electrotechnical Society, 2015, 30(2): 140-147. [10] Gao Xuemei, Sandipan Mishra. An iterative learning control algorithm for portability between trajecto- ries[C]//American Control Conference, Portland, OR, 2014: 3808-3813. [11] Scholten P. Iterative learning control—a design for a linear motor motion system[D]. Holland: University of Twente, 2000. [12] 杨俊友, 马航, 关丽荣, 等. 永磁直线电机二维分段复合迭代学习控制[J]. 中国电机工程学报, 2010, 30(30): 74-80. Yang Junyou, Ma Hang, Guan Lirong, et al. Two- dimensional segmented synthesis iterative learning control of permanent magnet linear motor[J]. Pro- ceedings of the CSEE, 2010, 30(30): 74-80. [13] 杨俊友, 刘永恒, 白殿春, 等. 基于迭代学习与小波滤波器的永磁直线伺服系统扰动抑制[J]. 电工技术学报, 2013, 28(3): 87-92. Yang Junyou, Liu Yongheng, Bai Dianchun, et al. Disturbance rejection for PMLSM based on iterative learning control and wavelet filter[J]. Transactions of China Electrotechnical Society, 2013, 28(3): 87-92. [14] 王惠锋. 反馈辅助迭代学习控制及其在直线电机上的应用[D]. 杭州: 浙江工业大学, 2013. [15] 杨晓萍, 刘普森, 钟彦儒. 基于经验模式分解的有源滤波器谐波检测[J]. 电工技术学报, 2009, 24(5): 197-202. Yang Xiaoping, Liu Pusen, Zhong Yanru. Harmonic detection of active power filter based on empirical mode decomposition[J]. Transactions of China Elec- trotechnical Society, 2009, 24(5): 197-202. [16] 张代林, 陈幼平, 艾武, 等. 基于观测器模型的直线电机干扰抑制技术的研究[J]. 中国电机工程学报, 2007, 27(12): 14-18. Zhang Dailin, Chen Youping, Ai Wu, et al. Research on disturbance suppression technology for linear motors based on a disturbance observer model[J]. Proceedings of the CSEE, 2007, 27(12): 14-18. [17] 李芝乐. PMLSM伺服系统的特征模型及其迭代学习控制方法[D]. 杭州: 浙江工业大学, 2012. [18] 王婷. EMD算法研究及其在信号去噪中的应用[D]. 哈尔滨: 哈尔滨工程大学, 2010. [19] Fei Bao, Wang Xinlong, Tao Zhiyong, et al. EMD- based extraction of modulated cavitation noise[J]. Mechanical Systems and Signal Processing, 2010, 24(7): 2124-2136.
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