数字化大功率微弧氧化电源控制系统

Controlling system designing of digital high-power magnesium alloy ang aluminum alloy micro-arc oxidation power supply with multi-degree of freedom

介绍了一种数字化多自由度大功率微弧氧化电源的控制系统,该电源控制系统以TMS320F2812为控制核心,用S3C2410控制的触摸屏作为系统的人机界面。详细说明了该电源主电路结构、控制系统硬件和软件设计流程以及人机界面设计。研制出的微弧氧化电源控制系统具有恒压、恒流以及恒功率三种工作模式,每种工作模式下可以按照上位机的要求设置正负脉冲电压、电流、占空比、频率以及加工时间等工艺参数,实现预定的功能。现场运行结果表明,该电源系统操作方便、工艺适应性强、稳定性好、控制精度高。

This paper introduces a digital micro-arc oxidation power of the control system,the power control system use TMS320F2812 as power control core,human-machine interface based on S3C2410 controling with touch-screen as a system.Introduced Main circuit structure,the power control system hardware and software design methods and Man-machine interface designing.The micro-arc oxidation power control system with a constant voltage,constant current and constant power of three modes can be set in accordance with the requirements of PC technical parameters,Such as the positive and negative pulse voltage,current,duty cycle,frequency and processing time,to achieve the intended function.Running results show that the power system is easy to operate,good technological adaptability,good stability and high accuracy of controlling.