Transactions of Materials and Heat Treatment

Title：Synchronous control of dual-motor in servo cam press based on active disturbance rejection torque allocation algorithm

Authors： Niu Zhicun1 2 3 Wang Rui1 2 3 Hu Zhili1 2 3

Unit： 1. Hubei Longzhong Laboratory 2. Hubei Key Laboratory of Advanced Technology for Automotive Components Wuhan University of Technology 3. Hubei Engineering Center for Green Material Forming Technology and Equipment Wuhan University of Technology

KeyWords： servo cam press dual-motor synchronous control cross-coupling active disturbance rejection control torque allocation

ClassificationCode：TM341

year,vol(issue):pagenumber：2024,49(3):161-169

Abstract：

To solve the problem of severe nonlinear vibration in the transmission system caused by biased load of transmission or uneven torque distribution in servo cam pressure, therefore, a dual-motor synchronous drive strategy using a servo motor at each end of camshaft was proposed to enhance the reliability of cam-roller transmission system，and a cross coupling synchronous control strategy based on the active disturbance rejection torque allocation algorithm was introduced. This strategy took the speed synchronization error of dual-motor as input to the synchronization controller, and adjusted the weight values according to predetermined variation laws until the performance index requirements were met. The simulation results demonstrate that compared to the traditional cross-coupling control systems, this synchronous control strategy based on the active disturbance rejection torque allocation algorithm exhibits superior anti-interference capabilities, faster tracking response speeds, higher synchronization control accuracy and shorter time required to achieve speed synchronization, and the position synchronization error is less than 0.02 mm. The simulation results not only verify the effectiveness of the dual-motor synchronous drive strategy for the servo cam press, but also provide a feasible solution to the control problem of the servo cam press.

Funds：

国家自然科学基金面上项目（52075400）；湖北隆中实验室自主创新项目（2022ZZ-04）；国家111计划项目课题（B17034）；湖北省重点研发计划（2021BAA200）；湖北省技术创新重大专项（2022AAA001）；湖北省科技创新人才及服务专项（2022EJD012）

作者简介：牛志存（1999-），男，硕士研究生，E-mail：zhicunniu@163.com；通信作者：胡志力（1983-），男，博士，教授，博士研究生导师，E-mail：zhilihuhit@163.com

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