Analysis Of The System Dynamic Response Of The System Under The Electrical Pressure

With the continuous development of the mechanical industry,the demand for straightening machine equipment is also increasing.Therefore,it is necessary to continue research on straightening technology and equipment to meet the diverse needs of the market and promote the progress and development of the entire industry.As the core component of the straightening equipment,the control performance of the electric screwdown system is directly related to the stability and accuracy of the entire process flow.Studying the composition and control strategy of electric screwdown systems can significantly improve straightening accuracy,reduce production costs,and thereby enhance the manufacturing power of the straightening industry.This article combines the actual situation to study the transmission error model,motor drive control algorithm,and hardware system of the straightening machine system under voltage.In response to the problem of motor ground speed disturbance,an observer based method is used to study the speed sensorless vector control system.Firstly,the principle of the press down system of the straightening machine was analyzed,and the mechanical transmission system error that affects the straightening was analyzed.After considering the influence factors of the transmission system clearance,a control model for the transmission error of the press down system was established.Secondly,a dual closed-loop speed control design scheme is adopted for the electric control system,establishing mathematical models of three-phase asynchronous motors in different coordinate systems,and designing a speed sensorless vector control model.Aiming at the shortcomings of the speed sensorless vector control model,the scheme is improved,which mainly uses fuzzy PI to optimize the double closed loop speed regulation system,uses Sliding mode control to optimize the rotor flux MRAS model,and designs a control strategy combining fuzzy PI controller and current sliding mode controller.Use MATLAB/Simulink to simulate motor motion.The electric screw down system control of the improved MARS magnetic linkage model has fast response,strong robustness,strong anti-interference ability,and improved accuracy,providing a reliable technical foundation for the straightening machine industry,achieving dynamic response and control of the straightening electromechanical dynamic screw down system,and making contributions to the straightening machine control field.The final design is based on the Siemens S7-1500 PLC for the experimental design of the electric screwdown system,which includes the design of the control scheme,the selection of system hardware,and the hardware configuration,parameter settings,and ladder diagram programming in the Botu TIA simulation software.Finally,the control of the straightening machine screwdown system is achieved.