Driving And Synchronization Control System Of Lifting Ferry Car In PC Component Production Line

With the development of assembly building in China,the importance of automatic production of PC components(prefabricated concrete components)has become increasingly prominent.In this paper,the lifting ferry of PC component production line is taken as the research object.Through the analysis of the research status of assembly building,prefabricated component production line and the operation status of lifting ferry,the key role of lifting ferry in PC component production line is understood,and the existing problems of lifting ferry in the process of transportation platform are put forward.By analyzing the causes of the problems,and aiming at the influencing factors,the lifting ferries are improved.Specific improvements involve modifying the power supply mode of the lift-type ferry,correcting the position value detected by the encoder,and controlling the synchronization of the walking position and speed of the two lift-type ferry vehicles.Firstly,the paper introduces the production environment and work flow of the lift-type ferry,the structure of the lift-type ferry and the requirement of the transport platform.According to the operation requirement of the lift-type ferry,the overall improvement scheme of the lift-type ferry is put forward,and some parts of the lift-type ferry are selected.Secondly,the supercapacitor is used as the energy storage device on the vehicle to supply power to the lift ferry.The energy storage principle of the supercapacitor is introduced and the energy storage system is constructed.The supercapacitor is charged by the charging sliding line in segments,and the segment distance is taken as the set travel distance of the ferry,and the capacity of the required supercapacitor is calculated combined with the operation parameters of the lift-type ferry.Then,by improving the transponder part of passive RFID,a new type of passive RFID correction device is constructed.The position value of encoder detection is fixed-point corrected by using the correction device to reduce the cumulative error in the detection process of lift-type ferry.Finally,in order to reduce the difference of walking position and speed between two lifting ferries,the synchronization control system of the lifting ferries is studied.The synchronization control scheme is analyzed with the correction device.The mode switching strategy is adopted,and the adaptive fuzzy PID control and the model predictive control method are used to control the two lifting ferries.Adjustment.Simulink simulation is carried out for synchronization control of lift-type ferry,and the simulation results can achieve the synchronization target required by the ferry.In order to further verify,the validity of the improved device and control strategy is verified by setting up a test platform and analyzing the results of voltage,position correction and position velocity difference change of the supercapacitor,and the difference between the improved device and the current situation is explained.