【作者】 谢林菲；

【导师】 游林儒；

【作者基本信息】 华南理工大学 ， 控制理论与控制工程， 2010， 硕士

【摘要】 锂离子电池在各行各业中应用广泛,在国民经济中具有重要地位。国内锂电池设备厂家,仍以半自动化、单机自动化设备为主,与国外产品相比有较大差距。锂电池极耳焊接机是卷绕电芯成型方案中的关键设备之一,且不同的客户对同一设备还有特殊要求,需要把设备做成模块化、系列化、可以灵活组合,因此研究一套高性能、低成本、具有开放式体系的锂电池极耳焊接机控制系统显得十分重要。本课题从锂电池极耳焊接机的原理和电气结构入手,分析了系统的功能需求,提出了锂电池极耳焊接机多任务控制系统的的整体设计方案。采用基于x86架构的工业PC(简称PC/104)和FPGA多功能扩展电路为核心器件,以CPLD(EPM1270)作为I/O扩展模块,完成了主控电路、电机驱动电路、I/O扩展电路及AD/DA电路的设计,并进行了大量的调试工作。在软件设计方面,将控制系统任务进行层次化、模块化分割,基于RTAI的实时操作系统,引入硬件抽象层(HAL,Hardware Abstraction Layer)技术,将各模块以软件构件的形式进行封装,实现任务处理、实时计算、轨迹插补,位置控制以及IO管理的功能,同时引入具有实时特性的开源软PLC系统,用于顺序控制、定时控制、计数控制、闭环过程控制等,利用Linux下图形库,自主开发了适用的人机界面。目前,采用该方案的锂电池极耳焊接机已通过项目验收,所研制的多轴控制系统能够实现了锂离子电池制片工艺的极耳焊接和贴胶纸、全自动收放料、自动纠偏,并且具有较高的效率和精度,系统运行情况良好。基于HAL构件的软件设计方法,具有较好的开放性,能很好地满足变化的锂电池制造工艺需求。论文结尾对本课题进行了工作总结,并针对锂电池极耳焊接机及锂电池生产设备发展趋势和以后的工作努力方向作出了展望。更多还原

【Abstract】 By far, Lithum-ion battery has been widely used in the world plays an important role in the national economy.Domestic lithium battery equipment manufacturers,still based on semi-automation equipment,have a wide gap compared with foreign manufacturers.Lithium electrode welding machine is a high-precision Li-ion production equipment and one of the critical equipment for the forming of winding lithium batteries.Different customers have special requirements on the same equipment,so the facilities need to be made modular、series and can be combined flexibly.Thus,the R & D of the high-performance、low costs、and have a open architecture of lithum electrode welding machine control system is very important in the domestic companies.This article obtaining from the lithum electrode welding machine’s principle and the function,introduce the process and electrical structure,established the main tasks of control system,gives a overall design base on multi-tasks control system of lithum electrode welding machine.Base on the X86 architecture of industrial PC(referred as PC/104) and FPGA as the main controller,expansion CPLD circuit as I/O module,designed the circuit of main controller, microstep control and driver,the AD/DA convert circuits.Besides the motion control circuit was realized by means of FPGA programming,which is mainly composed of high-speed pulse generator and the servo motor control module.Refering to the software design, division the control system hierarchical and modular, designed the independent and collaborative between functional modules,independent modular programming,based on RTAI real-time operating system with the hardware abstraction layer technology,package each modules in the form of components,to achieve the control division the task processing,real-time computation,trajectory interpolation,position control,and IO management modules,mean-while,introduce open source soft-PLC system which has real-time characteristics,for the switch logic control,sequential control,timing control, counting control,closed loop process control,also use the Linux graphics library to design the user interface.So far, the design of the control system of lithium electrode welding machine was put into experiment, research and the result shows that the control system already has achieved multi-axis coordinated control and satisfied the precise electrode welding and adhesive stickers,to achieve automatic discharge and correction.Based on the HAL component method to design open embedded system is more suitable for the battery technology to meet the rapidly changing requirements.The end of this paper summary of the work carried out,and analysis the trends of lithium battery production equipment,including some suggestions for next work.更多还原