The Deviation Rectification Control Research And Realization Of Square Lithium-ion Battery Winding System

With the increasing use of lithium-ion batteries,its market demand rapid rise,so the demand for lithium-ion battery production capacity and product quality is also rising.The lithium-ion battery core winding machine is responsible for completing the key production technology of lithium-ion battery core winding,and the process quality is directly linked to the quality of lithium battery products.Domestic lithium battery winding machine technology started relatively late,mainly through the introduction of foreign advanced equipment purchase,the price is high and no independent property rights.Therefore,in order to improve the production of lithium-ion batteries,design a lithium battery production equipment with excellent performance and reasonable price,is conducive to the improvement of the domestic lithium-ion battery industry structure,is of great practical significance.This paper focuses on the one of key technologies of lithium-ion battery winding machine,that is deviation rectification control.Based on the analysis of the offset production mechanism,the theoretical model of multistage deviation rectification control system is constructed.The controller hardware and software are designed according to the task and characteristics of deviation rectification control.A new error correction scheme is proposed in the single stage deviation rectification control.The synchronization control strategy is applied to the multistage error correction control.Finally,the simulation results verify the effectiveness of the deviation rectification control.First of all,modeling the winding machine deviation rectification control system.This paper analyzes the structure of the deviation correction control system and introduces the reason of the offset.The theoretical model is established for each actuator,and the whole model of the deviation rectification control system is obtained.Secondly,in order to meet the demand of the system,the hardware circuit and software of the controller are designed,and the function of each module is realized through debugging.Thirdly,to improve the deviation rectification control strategy for single stage deviation rectification.The fuzzy PID control is applied to the single stage deviation correction control,and the fuzzy control rules are determined by analyzing the effect of the conventional PID control in the rectification control.The simulation tool is used to compare the performance of the conventional PID control and fuzzy PID control in single stage deviation rectification control.Finally,based on the shortcomings of the conventional multilevel deviation rectification control method,a synchronization control strategy is proposed.The simulation results show that the control effect of several kinds of conventional synchronous control strategies in the multilevel deviation rectification control system.The cross coupling synchronous control method is chosen to establish the model of the error correction control system on the MATLAB/Simulink platform.By comparing the actual multilevel deviation rectification control,the control effect of synchronous control mode in the deviation rectification control is verified.