数字化弧焊逆变电源实时状态监测与管理

Supervising and management on states of digital-controlled inverter arc welding power supply in real-time

基于双数字信号处理器(DSP)的数字化弧焊逆变电源上,实现了嵌入式实时操作系统(RTOS)μC/OS-II(micro controller operating system-II)的成功移植和应用。在对焊接过程中的众多事务进行功能明确的任务划分、多任务调度、多状态监测的基础上,实现了对电源工作状态的实时监控以及对电源的输入输出模块、逆变模块和焊接外设等故障做出快速准确的判断和保护处理,保障了焊接电源的工作可靠性和安全性。并且通过多任务协调配合,实现了各个工作状态与用户的实时友好交互,提高了电源系统的故障准确辨识率及其可操作性,解决了弧焊逆变电源实时状态以及整机的数字化综合管理问题。

The embedded Real Time Operating System (RTOS) and Micro Controller Operating System-Ⅱ (μC/OS-Ⅱ) are successfully transplanted and applied in the digital-controlled inverter arc welding power supply, which based on the dual Digital Signal Processors. For numerous affairs during welding process, after the assignment of multitasks with clear functions, scheduling of multitasks and supervising of multi-states are carried out, and the supervising on the working states of power supply in real time, and the fast and correct judgment and protection action on the faults of power supply, such as the faults of input/output model, the faults of inverter model and the faults of welding assistant equipment etc., are achieved, which guarantees the working reliability and security of welding power supply. Moreover, through the harmony and cooperation of multitasks, the friendly alternation between various working states and users are realized in real time, thus the accuracy of faults identification on power supply system and its maneuverability are improved, and the problems of digital management of real-time states of inverter arc welding power supply and digital comprehensive management of the whole welding machine are solved.