| Under the background of the double carbon strategy,lithium batteries are widely used in construction machinery,rail transit and other industries,and the performance of the pole sheet rolling mill as one of the important equipment in the rolling process of lithium battery pole piece has attracted much attention.At present,in the pole rolling mill equipment,the application of electro-hydraulic servo valve control system is more common,but the valve control system has defects such as poor anti-pollution ability,serious energy waste,and high installed cost,which is difficult to meet the needs of green development and intelligent transformation in the future industrial field.The electrohydraulic servo pump control system has the technical advantages of high efficiency and energy saving,high power-to-weight ratio,environmental friendliness and high integration,which makes up for the technical defects of the valve control system.However,the pump control system belongs to electromechanical and hydraulic integration products,and the coupling between the subsystems,whether the dynamic parameters of the system components match directly affects the performance indicators of the system,which restricts the application and promotion of the electro-hydraulic servo pump control system in the pole rolling mill equipment.Therefore,this paper aims to improve the performance of electro-hydraulic servo pump control system,and focuses on the matching and design of system dynamic parameters.The specific research content is as follows:Firstly,according to the composition and working principle of electro-hydraulic servo pump control system,the main components and systems are modeled and analyzed,and the parameter matching optimization indicators of electro-hydraulic servo pump control system are extracted from the perspectives of system efficiency,dynamic performance and economy,and the coupling law of each index and dynamic parameters is explored.Secondly,taking the multi-objective collaborative optimization of the system as the background,the weight distribution relationship of parameter design under the action of multi-characteristic law is studied,and a dynamic parameter matching method based on multi-objective particle swarm optimization algorithm is proposed,and the dynamic parameter design is carried out in combination with the process requirements of the pole rolling mill to obtain the best performance of the system.Finally,the electro-hydraulic servo pump control system is applied to the electrohydraulic rolling mill equipment,and the research theory of dynamic parameter matching and design of the electro-hydraulic servo pump control system studied in this paper is verified through the experiments on the output characteristics,efficiency characteristics and dynamic performance of the system.This research project has played an important role in promoting the engineering application and promotion of electro-hydraulic servo pump control technology in the field of pole rolling mill equipment. |
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