跳汰机自动排料系统液压换向阀模糊PID控制研究

Research on fuzzy PID control of hydraulic reversing valve in automatic discharge system of jig machine

摘要: 针对液压换向阀频繁启停引起的跳汰机自动排料系统排料不畅问题，提出了一种跳汰机自动排料系统液压换向阀模糊PID控制方法。首先，分析跳汰机自动排料系统的工作特性，确定通过控制系统的液压换向阀能够控制床层厚度，并将床层厚度作为系统控制参数；其次，设计模糊PID控制器对液压换向阀展开控制；最后，利用混沌优化算法对控制器展开参数整定，确保控制器的精度。实验结果表明，该方法对液压换向阀的控制效率较高、控制效果较好。

Abstract: A fuzzy PID control method for the hydraulic directional valve in the automatic discharge system of a jigs machine is proposed to address the problem of poor discharge caused by frequent start stop of the hydraulic directional valve.Firstly,analyze the working characteristics of the automatic discharge system of the jigs,determine that the bed thickness can be controlled through the hydraulic directional valve of the control system,and use the bed thickness as the system control parameter;Secondly,design a fuzzy PID controller to control the hydraulic directional valve; Finally,the chaos optimization algorithm is used to perform parameter tuning on the controller to ensure its accuracy.The experimental results show that this method has high control efficiency and good control effect on hydraulic directional valves.