S7-200系列PLC在恒温控制系统设计  

Design of S7-200 Series PLC in Constant Temperature Control System

作　　者：周苏雅 蒋小辉[2] ZHOU Suya;JIANG Xiaohui(Guangshui Power Supply Company of Hubei Electric Power Co.,Ltd.,Hubei 432700,China;Department of Mechanical and Electrical Engineering,School of Science and Technology,Three Gorges University,Hubei 443002,China)

机构地区：[1]国网湖北省电力有限公司广水供电公司,湖北432700 [2]三峡大学科技学院机电系,湖北443002

出　　处：《集成电路应用》2022年第1期138-139,共2页Application of IC

摘　　要：阐述基于西门子S7-200系列PLC,设计一套220KV油浸式电力变压器恒温控制系统,以PLC控制变频器驱动冷却供水泵,实现温度闭环控制,满足油浸式电力变压器恒温控制及安全稳定运行的要求。Based on Siemens S7-200 series PLC, a set of 220 kV oil immersed power transformer constant temperature control system is designed. PLC controls frequency converter to drive cooling water supply pump to realize temperature closed-loop control, so as to meet the requirements of oil immersed power transformer constant temperature control and safe and stable operation.

关 键 词：恒温控制系统 变频器 PLC控制 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]