DSP模糊控制在TIG焊电源中的应用

Application of fuzzy control system based on DSP in TIG power supply

利用MATLAB的Fuzzy工具箱,离线辅助设计模糊控制器,以及DSP的高速度、丰富的片内外设和集成开发系统(CCS),构建了TIG电源闭环模糊控制系统。给出了系统软件总流程图和DSP模糊控制的流程图。经仿真分析,系统可靠,精度符合要求。

This paper applies DSP and fuzzy control technique to constant current control system of TIG power supply.It introduces the design of offline fuzzy control system by Fuzzy Logic box in MATLAB and constructs closed loop control system of TIC, power supply by DSP and CCS,which has high speed and abundant external device on chip and so on.The simulation of the system indicates that the fuzzy control system is robust,which satisfies the demands of TIG power supply＇s accuracy.