锻压技术

重型液压机执行器自适应滑模容错控制

英文标题：Adaptive sliding mode fault-tolerant control of actuator for heavy-duty hydraulic press

作者：徐济宣马辉

单位：江西交通职业技术学院

分类号：TP23

出版年,卷(期):页码：2020,45(4):140-146

摘要：

为了提高重型液压机在执行器故障情况下的容错控制能力和控制精度，设计了自适应滑模容错控制器。建立了5缸液压机的滑块动力学模型和液压缸压力动态方程。使用积分滑模控制设计了3个子系统虚拟控制律；使用伪逆法实现了控制分配；在执行器故障情况下，在积分滑模控制基础上，提出了自适应补偿策略，从而给出了执行器故障情况下可以实现的虚拟控制律；使用分散滑模控制将虚拟控制律转化为伺服阀控制律，并证明了自适应滑模容错控制器具有Lyapunov意义下的稳定性。经仿真验证，在单个执行器故障或多个执行器故障的情况下，自适应滑模容错控制器能够将调平误差控制在2×10-4 rad内，位移跟踪误差最大为0.0111 m，体现了执行器故障情况下极高的调平和跟踪精度，也体现了自适应滑模容错控制器具有很好的鲁棒性。

To improve fault-tolerant control ability and control accuracy of heavy-duty hydraulic press under the condition of actuator fault, the adaptive sliding mode fault-tolerant controller was designed. Kinetic model of sliding block and pressure dynamic equation of hydraulic cylinder for five-cylinder hydraulic press were built. The virtual control laws of three sub-systems were designed by integral sliding mode control. The pseudo inverse method was used to realize control allocation. Under the condition of actuator fault, adaptive compensate strategy was proposed on the basis of integral sliding mode control, so that the executable virtual control law under the condition of actuator fault was given. The virtual control law was transferred to servo-valve control law by decentralized sliding mode control, and the adaptive sliding mode fault-tolerant controller was proved to possess Lyapunov stability. It was clarified by simulation, under the condition of single actuator fault or multi-actuator fault, the adaptive sliding mode fault-tolerant controller can control the levelling error within 2×10-4 rad, and the maximum displacement tracking error is 0.0111 m, which reflect high leveling and tacking accuracy under the condition of actuator fault. Besides, it reflects good robustness of adaptive sliding mode fault-tolerant controller.

基金项目：

吉林省教育厅“十三五”科学技术研究项目(JJKH 20170338KJ)

徐济宣（1965-），男，学士，副教授 E-mail：3431003395@qq.com

参考文献：

[1]韩金运. 基于模糊滑模算法的四缸等温锻造液压机同步控制方法研究[D].合肥：合肥工业大学，2016.

Han J Y. Research on Synchronous Control Method of Four-cylinder Isothermal Forging Hydraulic Press Based on Fuzzy Sliding Mode Algorithm [D]. Hefei: Hefei University of Technology, 2016.

[2]李雪冰. 全纤维曲轴锻造液压机同步控制研究[D].秦皇岛：燕山大学，2016.

Li X B. Study on Synchronization Control for Full-fiber Crankshaft Upsetting-bending Hydraulic Press [D]. Qinhuangdao: Yanshan University, 2016.

[3]任锐, 马大为, 姚建勇, 等. 基于动态分配的多缸驱动承载平台的调平控制[J]. 机床与液压, 2018，46(16):87-91.

Ren R, Ma D W, Yao J Y, et al. Levelling control of multi-cylinders actuated bearing platforms with dynamic control allocation [J]. Machine Tool & Hydraulics, 2018，46(16):87-91.

[4]贾超，周俊强. 基于AMESim-MATLAB /Simulink的液压机新型控制器设计及联合仿真[J]. 锻压技术, 2019, 44(11):146-151.

Jia C, Zhou J Q. Design and joint simulation on new controller for hydraulic press based on AMESim-MATLBA/Simulink [J]. Forging & Stamping Technology, 2019, 44(11):146-151.

[5]裴红蕾, 刘刚, 赵翠萍. 基于二级控制器的重型锻造液压机同步控制[J]. 锻压技术, 2019, 44(1):124-128, 147.

Pei H L, Liu G, Zhao C P. Heavy-duty forging hydraulic press synchronous control based on secondary controller [J]. Forging & Stamping Technology, 2019, 44(1):124-128, 147.

[6]李晓祥, 王安麟, 樊旭灿. 高负压液压油缸系统流量再生液压阀再设计和能效分析[J]. 西安交通大学学报, 2019，53(7):52-59.

Li X X, Wang A L, Fan X C. Energy efficiency analysis and redesign of flow regenerating hydraulic valve for high negative pressure hydraulic cylinder system [J]. Journal of Xi′an Jiaotong University, 2019，53(7):52-59.

[7]于涛, 赵伟, 杨昆. 一类欠驱动系统的滑模变结构控制[J]. 控制工程, 2019，26(10):1824-1829.

Yu T, Zhao W, Yang K. Sliding mode variable structure control for a class of underactuated systems[J]. Control Engineering of China, 2019，26(10):1824-1829.

[8]Pradhan R, Subudhi B. Double integral sliding mode MPPT control of a photovoltaic system[J]. IEEE Transactions on Control Systems Technology, 2016, 24(1):285-292.

[9]李雨涛, 李爱军, 张金鹏, 等. 基于控制分配的复合控制导弹制导控制一体化设计[J]. 航空兵器, 2018, 308(6):34-40.

Li Y T, Li A J, Zhang J P, et al. Integrated guidance and control design for blended control missile based on control allocation [J]. Aero Weaponry, 2018, 308(6):34-40.

[10]刘睿, 周军. 无拖曳航天器连续推力分配的伪逆法二次优化方案[J]. 西北工业大学学报, 2017，35（6）：948-953.

Liu R, Zhou J. Optimizing continuous thrust allocation of a drag free spacecraft with pseudo-inverse method [J]. Journal of Northwestern Polytechnical University, 2017，35（6）：948-953.

[11]潘兆东, 谭平, 周福霖. 土木工程结构模糊滑模分散控制(DFSMC)研究[J]. 振动与冲击, 2017，36(20):112-116,122.

Pan Z D, Tan P, Zhou F L. A decentralized fuzzy sliding mode control (DFSMC) for civil engineering structures [J]. Journal of Vibration and Shock, 2017，36(20):112-116,122.

[12]贾超, 吴爱国. 新型的多缸液压机控制方法[J]. 华中科技大学学报：自然科学版, 2013, 41(9):42-47.

Jia C, Wu A G. Novel control scheme for multi cylinder hydraulic press [J]. J. Huazhong Univ. of Sci. & Tech. ：Natural Science Edition, 2013, 41(9):42-47.

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