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              快速刀具伺服系統位置域重復控制設計及其數字實(shí)現

              周蘭 楊秦 潘昌忠 肖文彬 李美柳

              周蘭, 楊秦, 潘昌忠, 肖文彬, 李美柳. 快速刀具伺服系統位置域重復控制設計及其數字實(shí)現. 自動(dòng)化學(xué)報, 2024, 50(7): 1432?1444 doi: 10.16383/j.aas.c230381
              引用本文: 周蘭, 楊秦, 潘昌忠, 肖文彬, 李美柳. 快速刀具伺服系統位置域重復控制設計及其數字實(shí)現. 自動(dòng)化學(xué)報, 2024, 50(7): 1432?1444 doi: 10.16383/j.aas.c230381
              Zhou Lan, Yang Qin, Pan Chang-Zhong, Xiao Wen-Bin, Li Mei-Liu. Design and digital implementation of spatial repetitive control for fast tool servo system. Acta Automatica Sinica, 2024, 50(7): 1432?1444 doi: 10.16383/j.aas.c230381
              Citation: Zhou Lan, Yang Qin, Pan Chang-Zhong, Xiao Wen-Bin, Li Mei-Liu. Design and digital implementation of spatial repetitive control for fast tool servo system. Acta Automatica Sinica, 2024, 50(7): 1432?1444 doi: 10.16383/j.aas.c230381

              快速刀具伺服系統位置域重復控制設計及其數字實(shí)現

              doi: 10.16383/j.aas.c230381
              基金項目: 國家自然科學(xué)基金(62373145, 62173138, 62303179), 湖南省重點(diǎn)研發(fā)計劃項目(2023GK2027), 湖南省自然科學(xué)基金(2021JJ30006, 2023JJ40297, 2023JJ40295), 湖南省教育廳科研項目(21A0321, 22B0468, 22C0244), 湖南省研究生科研創(chuàng )新項目(CX20221055)資助
              詳細信息
                作者簡(jiǎn)介:

                周蘭:湖南科技大學(xué)信息與電氣工程學(xué)院教授. 主要研究方向為非線(xiàn)性系統, 魯棒控制和重復控制理論及應用. 本文通信作者. E-mail: zhoulan75@163.com

                楊秦:湖南科技大學(xué)信息與電氣工程學(xué)院碩士研究生. 主要研究方向為重復控制, 數控加工及機電系統設計. E-mail: YangQin7699@163.com

                潘昌忠:湖南科技大學(xué)信息與電氣工程學(xué)院教授. 主要研究方向為非線(xiàn)性控制理論與應用, 機電系統與機器人控制和智能控制. E-mail: pancz@hnust.edu.cn

                肖文彬:湖南科技大學(xué)信息與電氣工程學(xué)院講師. 主要研究方向為非線(xiàn)性系統自適應控制和多智能體系統分布式控制. E-mail: xiaowb992@163.com

                李美柳:湖南科技大學(xué)信息與電氣工程學(xué)院講師. 主要研究方向為網(wǎng)絡(luò )化系統, 擾動(dòng)估計與補償和時(shí)滯系統魯棒控制. E-mail: limeiliu@hnust.edu.cn

              Design and Digital Implementation of Spatial Repetitive Control for Fast Tool Servo System

              Funds: Supported by National Natural Science Foundation of China (62373145, 62173138, 62303179), the Key Research and Development Programs of Department of Science and Technology of Hunan Province (2023GK2027), the Natural Science Foundation of Hunan Province (2021JJ30006, 2023JJ40297, 2023JJ40295), the Scientific Research Fund of Hunan Provincial Education Department (21A0321, 22B0468, 22C0244), and the Graduate Scientific Research Innovation Project of Hunan Province (CX20221055)
              More Information
                Author Bio:

                ZHOU Lan Professor at the School of Information and Electrical Engineering, Hunan University of Science and Technology. Her research interest covers nonlinear system, robust control and theory and application of repetitive control. Corresponding author of this paper

                YANG Qin Master student at the School of Information and Electrical Engineering, Hunan University of Science and Technology. His research interest covers repetitive control, numerical control machining, and mechatronic system design design

                PAN Chang-Zhong Professor at the School of Information and Electrical Engineering, Hunan University of Science and Technology. His research interest covers nonlinear control theory and applications, mechatronics and robot control, and intelligent control

                XIAO Wen-Bin Lecturer at the School of Information and Electrical Engineering, Hunan University of Science and Technology. Her research interest covers adaptive control for nonlinear systems and distributed control for multi-agent systems

                LI Mei-Liu Lecturer at the School of Information and Electrical Engineering, Hunan University of Science and Technology. Her research interest covers networked systems, disturbance estimation and compensation, and robust control in time-delay systems

              • 摘要: 在非圓零件車(chē)削過(guò)程中, 快速刀具伺服(Fast tool servo, FTS)的運動(dòng)精度直接影響零件的加工質(zhì)量. 主軸變速加工使得FTS的參考目標信號周期時(shí)變而不確定, 這對實(shí)現其漸近跟蹤提出了極大的挑戰. 本文利用FTS的位置域周期特性, 提出一種基于位置域重復控制和時(shí)域速度反饋鎮定的FTS系統復合控制設計方法, 并給出位置域改進(jìn)型重復控制器(Spatial modified repetitive controller, SMRC)的數字實(shí)現算法, 實(shí)現對時(shí)變周期參考目標信號的高精度跟蹤. 首先, 建立包含位置相關(guān)時(shí)變周期參考目標信號內模的SMRC, 并引入位置域相位超前裝置對鎮定補償器引起的相位滯后進(jìn)行補償, 在此基礎上構建復合控制律. 然后應用小增益定理和算子理論, 推導出控制系統的穩定性條件, 在保持系統采樣頻率不變的條件下, 應用插值法建立SMRC的數字實(shí)現算法, 確保位置域重復控制和時(shí)域鎮定控制器的同步執行. 最后, 通過(guò)仿真驗證所設計的FTS控制系統具有滿(mǎn)意的時(shí)變周期跟蹤性能和魯棒性, 并通過(guò)與其他位置域重復控制方法的比較, 說(shuō)明所提方法同時(shí)具有更好的暫態(tài)和穩態(tài)性能.
              • 圖  1  橢圓零件加工示意圖

                Fig.  1  Elliptical workpiece machining schematic

                圖  2  基于位置域改進(jìn)型重復控制的FTS系統框圖

                Fig.  2  Block diagram of SMRC-based FTS system

                圖  3  位置域基本重復控制器和改進(jìn)型重復控制器的零極點(diǎn)分布圖和幅值特性曲線(xiàn)

                Fig.  3  Zero-pole map and Amplitude-frequency characteristics of spatial basic repetitive controller and SMRC

                圖  4  $r(t)=0$時(shí)FTS控制系統的等價(jià)形式

                Fig.  4  Equivalent form of FTS control system when $r(t)=0$

                圖  5  時(shí)域純時(shí)滯環(huán)節的數字實(shí)現

                Fig.  5  Digital implementation of the pure time-delay link in the time domain

                圖  6  位置域時(shí)滯單元輸入輸出曲線(xiàn)

                Fig.  6  Input and output curves of the delay element in position domain

                圖  7  位置相關(guān)周期信號等時(shí)采樣示意圖

                Fig.  7  Diagram of isochronous sampling of a position-dependent periodic signal

                圖  8  位置域改進(jìn)型重復控制器數字實(shí)現算法流程圖

                Fig.  8  Flowchart of the digital implementation algorithm for SMRC

                圖  9  參考信號在時(shí)間域和位置域的曲線(xiàn)

                Fig.  9  Reference signal curves in the time and position domains

                圖  10  $Q_{{{\rm m}}}(s)$和$1+G(s)$的伯德圖

                Fig.  10  Bode plots of $Q_{{{\rm m}}}(s)$ and $1+G(s)$

                圖  11  基于SMRC方法的FTS輸出響應

                Fig.  11  Output response of the SMRC-based FTS

                圖  12  不同相位補償因子的跟蹤誤差

                Fig.  12  Tracking errors with different phase compensation factors

                圖  13  存在參數攝動(dòng)時(shí)的跟蹤誤差

                Fig.  13  Tracking error with parameter perturbation

                圖  14  無(wú)速度反饋時(shí)的$Q_{{{{\rm{m}}}}}(s)$和$1+G^{\prime}(s)$伯德圖

                Fig.  14  Bode plots of $Q_{{{{\rm{m}}}}}(s)$ and $1+G^{\prime}(s)$ without velocity feedback

                圖  15  本文方法與傳統定周期時(shí)域重復控制方法的對比

                Fig.  15  Comparison of our method with the conventional fixed-period time-domain repetitive control method

                圖  16  本文方法與Liu等[32]和Yao等[33]的跟蹤誤差對比

                Fig.  16  Comparison of the tracking error between our method and the methods proposed by Liu et al.[32] and Yao et al.[33]

                表  1  音圈式直線(xiàn)電機相關(guān)參數

                Table  1  Parameters of the voice coil type linear motor

                參數 符號 單位 數值
                彈簧剛度系數 $ K $ ${\rm{N/m }} $ 4 980
                阻尼系數 $ C $ ${\rm{N\cdot s\cdot m^{-1}}}$ 14.51
                動(dòng)子質(zhì)量 $ M $ ${\rm{kg } }$ 0.32
                電機力常數 $ K_{m} $ ${\rm{N/A }} $ 12.325
                放大器增益 $ K_a $ ${\rm{A/v}} $ 1.6
                下載: 導出CSV

                表  2  性能指標對比

                Table  2  Comparison of performance indices

                控制方法 $\max|e(t)|_{0<t\leq 20}$ $e_{pp}\;(0 < t\leq 20)$ $\max|e(t)|_{t>20} $ $e_{pp}\;(t > 20)$
                CRC $8.744\times10^{-2} $ $17.393\times10^{-2} $ $9.707\times10^{-3} $ $1.580\times10^{-2} $
                Liu等[32] $3.246\times10^{-2} $ $5.993\times10^{-2} $ $1.006\times10^{-3} $ $1.992\times10^{-3} $
                Yao等[33] $2.315\times10^{-2} $ $3.684\times10^{-2} $ $6.737\times10^{-3} $ $1.347\times10^{-2} $
                本文方法 2.315 × 10?2 3.665 × 10?2 6.759 × 10?4 1.334 × 10?3
                下載: 導出CSV
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                        • 收稿日期:  2023-06-19
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