Research On Multi Hydraulic Cylinder Synchronous Control System Based On Fuzzy Self-tuning PI Control

With the increasing attention of the state and society to environmental protection,local governments have increasingly tightened restrictions on natural stone mining and ceramic sintering.Artificial quartz stone plays a more and more important role in decorative building materials because of its characteristics of saving materials,low energy consumption,less pollution,gorgeous color and various colors.The artificial quartz stone is pressed and formed by the molding machine.The synchronous performance of multiple hydraulic cylinders of the molding machine is the key factor limiting its cost improvement,energy consumption reduction and quality improvement.Therefore,the research on the synchronization technology of multi hydraulic cylinders of molding machine is directly related to the competitiveness and vitality of artificial quartz enterprises,which is of great strategic significance.In order to improve the synchronization performance of the hydraulic system of the forming machine,this paper studies the method and technology of multi hydraulic cylinder synchronization control.Based on the in-depth analysis of the existing common multi hydraulic cylinder synchronous control methods,this paper discusses the application of fuzzy control theory and self-tuning control theory to the multi hydraulic cylinder synchronous control system of forming machine,so as to overcome the instability and poor synchronization performance of the traditional multi hydraulic cylinder synchronous control system under complex and bad working conditions.On the basis of theoretical analysis,a multi hydraulic cylinder synchronous control method based on fuzzy self-tuning PI control is proposed.Based on the established mathematical model of multi hydraulic cylinder synchronous control system,the simulation model of multi hydraulic cylinder synchronous control system is built,the hardware experimental platform is built with DSP28335 as the controller,and the software is designed with CCS as the development environment to realize the multi hydraulic cylinder synchronous control based on fuzzy self-tuning PI control.Experimental results verify the effectiveness of the fuzzy self-tuning PI control optimization method proposed in this paper.