基于PLC/HMI/VVVF控制的恒压供水系统设计  

Design of Constant Pressure Water Supplying System with Frequency Conversion Based on PLC/HMI/VVVF

作　　者：王晓瑜[1] 

机构地区：[1]西安航空学院电子工程学院,西安710077

出　　处：《机电一体化》2016年第10期64-67,共4页Mechatronics

基　　金：陕西省教育厅专项科研项目(编号15JK 2129;编号16JK2174)

摘　　要：介绍西门子S7-200 PLC、HMI和VVVF在恒压供水控制系统中的应用。阐述系统的控制原理,设计系统流程图,给出PLC端子接线图,简介软件程序。运行结果证明,系统稳定、可靠,操作简单直观,同时结合人机界面HMI的应用可实现系统的状态可视化和控制智能化,住宅恒压供水和节能环保的要求得以实现。The application of PLC,HMI and VVVF are introduced in constant pressure water supplying system with frequency conversion. The principle diagram is analyzed, the control system flow chart and software program are introduced, PLC terminals wiring diagram is given. Through in-situ operation, the system has been proved good at re- liability, stability, simplicity and intuition. Also, depend on the application of HMI, it realizes system mode visual- ization and intelligence control. Achieved constant pressure water supply and environmental protection requirements.

关 键 词：恒压供水 PLC HMI VVVF 

分 类 号：TU821[建筑科学]