| 用PLC实现电动机的变频调速 |
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| 引用本文： | 韩忠民,鲁荣清,刘桥. 用PLC实现电动机的变频调速[J]. 现代机械, 2003, 0(6): 64-67 |
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| 作者姓名： | 韩忠民 鲁荣清 刘桥 |
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| 作者单位： | 贵州大学电子科学系,550025 |
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| 摘 要： | 本文提出了一种用PLC实现电动机变频调速的方法 ,该方法采用简单易学的梯形图语言编程产生控制逆变量功率开关器件通断的信号 ,使逆变器输出SPWM波形 ,改变其频率就可以实现对异步电动机的变频调速。
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| 关 键 词： | 可编程控制品 梯形图 变频调速 正弦波脉宽调剂 规则采样 |
| 修稿时间： | 2003-10-22 |
Realizing Variable Frequency and Speed Adjusting of Electromotor with PLC |
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| Han Zhong-Min Lu Rong-Qing Liu Qiao. Realizing Variable Frequency and Speed Adjusting of Electromotor with PLC[J]. Modern Machinery, 2003, 0(6): 64-67 |
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| Authors: | Han Zhong-Min Lu Rong-Qing Liu Qiao |
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| Affiliation: | Han Zhong-Min Lu Rong-Qing Liu Qiao |
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| Abstract: | A method for realizing variable frequency and speed adjusting of electromotor is presented.The method uses simple and easily studied trapezoid graph to program and produce on-off signals for controlling switch elements of transducer.The signals make transducer produce SPWM wave and changing its frequency may realize variable frequency and speed adjusting of electromotor. |
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| Keywords: | PLC trapezoid graph variable frequency and speed adjusting SPWM regular sampling |
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