应用DSP技术实现焊接电弧弧长跟踪及控制

赵辉; 张洪国; 董瑞佳; 朱振伟

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应用DSP技术实现焊接电弧弧长跟踪及控制
Application of DSP technology for welding arc length tracking and control
2018年48卷第8期页码：61-66
纸质出版：2018
DOI：
稿件说明：

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赵辉, 张洪国, 董瑞佳, 等. 应用DSP技术实现焊接电弧弧长跟踪及控制[J]. 电焊机, 2018,48(8):61-66. DOI：

ZHAO Hui, ZHANG Hongguo, DONG Ruijia, et al. Application of DSP technology for welding arc length tracking and control[J]. Eletric Welding Machine2018, 48(8): 61-66. DOI：

摘要

系统以TMS320F28335芯片为核心

通过其内部AD功能

检测焊接过程中的电压及电流值

经过特定跟踪算法处理后输出PWM信号控制跟踪电机动作

通过SCI功能与PLC和示教器实现数据交换

最终实现高速(指焊接速度)或高频(指脉冲频率)下的弧长跟踪及有效控制。研发的跟踪器针对不同焊接类型

无需添加指定扩展模块

即可实现多种焊接类型的弧长跟踪及控制。通过实际焊接证明

弧长跟踪及控制效果良好

达到预期的焊接效果。

Abstract

This system is based on the TMS320 f28335 chip. The welding voltage and current values are acquired in the whole welding process by the AD function

and are handled by some specific tracking algorithms. After then the PWM signal is output to control and track the motor action. At the same time

this system exchanges data with the PLC and teaching device by the SCI function. Finally

the arc length tracking and effective control are realized in the conditions of the high welding speed or high impulse frequency. The developed tracker can track and control the arc lengths of various welding without adding a specified extension module. The actual welding proves that the effects of the arc length tracking and control are good

and the expected welding target is achieved.