| 逆变式焊/割电源滑模变结构与PI综合控制 |
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| 引用本文： | 朱国荣,钱翠锋,段善旭,康勇.逆变式焊/割电源滑模变结构与PI综合控制[J].焊接学报,2009,30(3):53-57. |
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| 作者姓名： | 朱国荣 钱翠锋 段善旭 康勇 |
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| 作者单位： | 1. 华中科技大学,电气与电子工程学院,武汉,430074
2. 华菱涟钢薄板有限公司,冷轧板厂,湖南,娄底,417009 |
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| 摘 要： | 根据焊条电弧焊/空气等离子切割电源特性,考虑到网压波动、经济效益以及人身安全,仔细分析了电源负载电流,短路电流和空载电压的要求,引入了滑模变结构控制(SMC),研究了基于SMC的电压环与基于PI的电流环相结合的综合控制方式,解决了电压超调与快速电压响应的矛盾等问题.文中从理论上推导了基于平均状态空间模型移相全桥间接SMC控制算法,应用了直接相移PWM波生成方法,从而使控制更为简单实用.最后在一台20 kW的逆变式焊/割电源上采用综合控制方法和单纯PI控制进行比较试验.结果表明,采用的综合控制方法应用在焊/割电源是一种非常有效且鲁棒性强的方法.
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| 关 键 词： | 逆变电源 焊/割电源 滑模变结构控制 移相全桥 |
| 收稿时间： | 2008/2/18 0:00:00 |
Composite control of sliding mode and PI for inverter arc welding/cutting power supply |
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| ZHU Guorong,QIAN Cuifeng,DUAN Shanxu and KANG Yong.Composite control of sliding mode and PI for inverter arc welding/cutting power supply[J].Transactions of The China Welding Institution,2009,30(3):53-57. |
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| Authors: | ZHU Guorong QIAN Cuifeng DUAN Shanxu and KANG Yong |
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| Affiliation: | 1.College of Electrical and Electronic Engineering;Huazhong University of Science and Technology;Wuhan 430074;China;2.Valin Lianyuan Iron & Steel Thin Sheet Co.Ltd;Loudi 417009;China |
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| Abstract: | According to the basic characteristics and the needs of arc welding/cutting power source,such as load current,short current and unload voltage,considering to the mains voltage fluctuation,economical and person security,the inverter arc welding/cutting power supply with composite control of sliding mode control(SMC) and PI is researched and designed.Through demonstrating the external characteristic demands of welding/cutting power supply and analyzing the control algorithm,PI control is used on current loop ... |
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| Keywords: | inverter arc welding/cutting power supply sliding mode control phase shift full bridge |
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