可编程控制器在进线母联自动切换操作方法上的应用 

刘永春，张国忠，何鸿艺 
厦门大学 嘉庚学院，福建 厦门 363105 
 

摘 要：针对6 kV 高压变电站进线柜与母联柜传统自动切换操作中存在的不足，提出采用可编程控制器(PLC) 控制技术实现自动切换的新方法。建立了变电站的仿真模型，阐述了倒闸操作的方式与内容，列举了PLC 控制的I/O 分配表，给出了外部接线图以及控制梯形图等。经实验测试，该方法不仅使各种操作功能更加完备，而且操作途径正确、唯一，对错误的操作能立即发出声光报警信号，而不会引起实质性的误操作结果。
关键词：可编程控制器控制；高压变电站；进线柜；母联柜；自动切换；倒闸操作
中图分类号：TM762 文献标识码：B 文章编号：1007-3175(2014)06-0034-06

Application of Programmable Logic Controller in Automatic Switching Operation Between Incoming Cabinet and Bus Tie Breaker Cabinet 

LIU Yong-chun, ZHANG Guo-zhong, HE Hong-yi 
Xiamen University Tan Kah Kee College, Xiamen 363105, China 
 

Abstract: Aiming at the shortcoming existing in the traditional automatic switching operation between the incoming cabinet and the bus tie breaker cabinet at 6 kV high-voltage substation, this paper proposed to adopt programmable logic controller control (PLC) technology to realize new ways of automatically switching, building up the simulation model of substation, expounding manners and contents of the switching operation, enumerating the I/O allocation table controlled by PLC and giving the external wiring diagram and the control ladder diagram.Experimental tests show that the method not only makes all kinds of operation function more perfect, but also makes the operation procedure correct and unique, and it can immediately send light and sound alarm signals for any wrong operation, without causing substantive misoperation results.
          Key words: programmable logic controller control; high-voltage substation; incoming cabinet; bus tie breaker cabinet; automatic switching;switching operation

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