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巨型模锻液压机同步系统性能的好坏直接决定锻件的加工质量。由于存在摩擦、复杂偏心载荷以及时变的液压参数等影响,建立精确的同步系统数学模型非常困难,因此给模锻同步系统的高精度控制带来了严峻的挑战。针对这一问题,借助AMESim与Simulink软件,搭建同步系统的联合仿真平台;提出算法简便、自适应性较强且易于实现的模糊PID控制方法;最后,进行不同工况中多种载荷作用下的一系列计算机仿真。仿真结果表明:模糊PID控制能够达到同步系统的控制精度要求,且控制效果比传统PID控制效果好。
Giant forging hydraulic press system performance is good or bad directly determines the quality of forging processing. Due to the influence of friction, complex eccentric load and time-varying hydraulic parameters, it is very difficult to establish accurate mathematical model of synchronous system, so it poses a serious challenge to high precision control of die forging synchronous system. In response to this problem, the AMESim and Simulink software are used to set up a co-simulation platform for synchronization system. A fuzzy PID control method with simple algorithm, strong adaptability and easy implementation is proposed. Finally, under different loads in different working conditions A series of computer simulations. The simulation results show that the fuzzy PID control can meet the control precision requirements of synchronous system and the control effect is better than the traditional PID control.