短电弧机床加工电源的反馈环路设计

操窘; 周建平; 许燕; 尹贻梁; 许以浩

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短电弧机床加工电源的反馈环路设计
操窘¹, 周建平^1,2, 许燕¹, 尹贻梁¹, 许以浩¹
1.新疆大学机械工程学院, 乌鲁木齐 830047;2.西安交通大学机械工程学院, 西安 710049

摘要:

为使短电弧加工过程中电弧放电通道更容易、有效地建立,使其电源电气特性满足试验要求,通过分析短电弧加工脉冲电源系统的增益特性,设计出满足短电弧加工试验所需的电源反馈环路,并建立基于Matlab的电源反馈环路仿真模型,通过仿真验证了设计的电源反馈环路具有输出电压平稳,受外界干扰小,响应速度快等优点,具有良好的可行性及稳定性. 最后通过电源空载及短电弧切削加工试验,验证了设计的电源反馈环路能够满足短电弧加工试验所需要求,为短电弧加工机理研究提供了重要的技术支持.

关键词: 短电弧加工放电通道增益特性反馈设计

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基金项目:国家自然科学基金资助项目(51365053)

Study on feedback of power source in short-electric arc machining

CAO Jiong¹, ZHOU Jianping^1,2, XU Yan¹, YIN Yiliang¹, XU Yihao¹

1.School of Mechanical Engineering, Xinjiang University, Urumqi 830047, China;2.School of Mechanical Engineering, Xi'an Jiaotong University, Xi'an 710049, China

Abstract:

In order to make the arc discharge channel be more easily and effectively established in short electric arc machining (SEAM), this paper established a simulation model of the power source based on Matlab and verified the feasibility and stability of the feedback loop in SEAM process. Through short arc electric cutting machining experiment, the electrical characteristics of the power source in SEAM, it meets the requirements of SEAM. The resutls provide important technical support for the understanding the short electric arc machining mechanism.

Key words: short electric arc machining (SEAM) discharge channel gain characteristic feedback loop