可編程控制器在進線母聯自動切換操作方法上的應用
劉永春，張國忠，何鴻藝
廈門大學 嘉庚學院，福建 廈門 363105
摘 要：針對6 kV 高壓變電站進線柜與母聯柜傳統自動切換操作中存在的不足，提出采用可編程控制器(PLC) 控制技術實現自動切換的新方法。建立了變電站的仿真模型，闡述了倒閘操作的方式與內容，列舉了PLC 控制的I/O 分配表，給出了外部接線圖以及控制梯形圖等。經實驗測試，該方法不僅使各種操作功能更加完備，而且操作途徑正確、唯一，對錯誤的操作能立即發出聲光報警信號，而不會引起實質性的誤操作結果。
關鍵詞：可編程控制器控制；高壓變電站；進線柜；母聯柜；自動切換；倒閘操作
中圖分類號：TM762 文獻標識碼：B 文章編號：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
參考文獻
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