| 基于PLC实现工频/变频电源的切换 |
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| 引用本文： | 杨庆堂,郭敬红.基于PLC实现工频/变频电源的切换[J].船电技术,2010,30(12):41-43,53. |
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| 作者姓名： | 杨庆堂 郭敬红 |
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| 作者单位： | 渤海船舶职业学院,辽宁,125005;渤海船舶职业学院,辽宁,125005 |
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| 摘 要： | 本文指出了传统的继电器．接触器控制电路的缺点，介绍了以计算机为基础的现代工业控制产品PLC和变频器，目的是要替代传统的控制方法，解决工业控制中工频／变频电源之间的切换问题，实现电动机在工频／变频两种模式下运行，在变频器出现故障时自动切换到工频运行方式并报警。实践证明这种控制方法安全可靠。
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| 关 键 词： | PLC 变频器 电源 切换 |
The Change-over of Industrial Frequency/Convertor Power Supply Through Programmable Logic Controller |
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| Yang Qingtang,Guo Jinghong.The Change-over of Industrial Frequency/Convertor Power Supply Through Programmable Logic Controller[J].Marine Electric & Electronic Technology,2010,30(12):41-43,53. |
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| Authors: | Yang Qingtang Guo Jinghong |
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| Institution: | Yang Qingtang,Guo Jinghong(Bohai Shipbuilding Vocational College,Liaoning 125005,China) |
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| Abstract: | In this paper,defects of the traditional relay-contactor control circuit are pointed out.The modern computer-based industrial control products such as PLC and converter are introduced,which is aimed to replace the traditional control method,so as to enable the change-over of industrial control frequency/variable frequency power supply.Through the programmable logic controller,the motor operates in both industrial frequency mode and converter mode.This control method is proved that it is safe and reliable. |
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| Keywords: | programmable logic controller converter power supply change-over |
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