Research on Water Supply System under Variable Frequency and Constant Pressure Technology

2014 ◽  
Vol 644-650 ◽  
pp. 3697-3700
Author(s):  
Tai Zong Li ◽  
Peng Zhang
Keyword(s):  
Water Supply ◽  
Constant Pressure ◽  
Frequency Control ◽  
Supply System ◽  
Water Supply System ◽  
Sensor Technology ◽  
Design System ◽  
Variable Frequency ◽  
Control Center ◽  
Ac Motor

The variable-frequency regulating speed technology is a new type of ac motor non-polar regulating speed technology, with the continuous development of power electronic technology, the variable-frequency regulating speed technology is becoming more and more perfect. With frequency control as the core, the application of water supply control system under constant pressure is more and more widely. Taking PLC as the control center, this article uses sensor technology and digital PID control to realize the water supply system under variable frequency constant pressure, and uses the MCGS software to design system to monitor the man-machine interactive interface.

Design of Water Supply System with no Tower under Constant Pressure Based on PLC

2014 ◽  
Vol 644-650 ◽  
pp. 3701-3704 ◽  
Author(s):  
Peng Zhang ◽  
Tai Zong Li
Keyword(s):  
Water Supply ◽  
Frequency Conversion ◽  
Constant Pressure ◽  
Supply System ◽  
Water Supply System ◽  
Sensor Technology ◽  
Control Center ◽  
High Rise ◽  
High Rise Building ◽  
Pressure Water

Aimed at the instable pressure of water supply, poor reliability and security problems of the water supply system in high-rise building, this paper adopts frequency conversion and constant pressure water supply technology to design the water supply system with no tower under constant pressure in high-rise building. The water supply system, with PLC as the control center, uses sensor technology and digital PID control to realize constant pressure water supply. Application results show that the water supply system has the characteristics of reliable running, simple operation, saving energy and reducing consumption.

Research of Constant Pressure Water Supply System Based on PLC

2014 ◽  
Vol 624 ◽  
pp. 465-468 ◽  
Author(s):  
Mei Fang Wan
Keyword(s):  
Control System ◽  
Water Supply ◽  
Constant Pressure ◽  
Frequency Converter ◽  
Supply System ◽  
Water Supply System ◽  
Variable Frequency ◽  
Variable Flow ◽  
Pressure Water ◽  
Pump Pressure

This article designs one constant pressure water supply system based on PLC. In this system, PLC and frequency converter is the main control system. Moreover, the water-supply system with a variable frequency and constant pressure is based on PCL and combines with water supply pump, pressure gage and other equipment. Water supply system realizes the water supply of constant pressure and variable flow.

Energy-Saving Applying Study of Fuzzy Control in the Variable Frequency and Constant Pressure Water Supply System

2012 ◽  
Vol 591-593 ◽  
pp. 1307-1310
Author(s):  
Yao Bin Hu ◽  
Yu Lin Wang ◽  
Liang Bin Hu ◽  
Peng Wei
Keyword(s):  
Fuzzy Control ◽  
Water Supply ◽  
Energy Saving ◽  
Constant Pressure ◽  
Supply System ◽  
Water Supply System ◽  
Fuzzy Arithmetic ◽  
Variable Frequency ◽  
Pipe Network ◽  
Pressure Water

A new energy-saving method of variable frequency and constant pressure water supply system based on fuzzy control theory and software control technique is presented in this paper. Firstly, collecting the pipe network pressure periodically through the pressure sensor, the differential pressure signal will be sent into fuzzy controller after comparing the pipe network pressure with the set pressure. Then send a precise control quantity into the PID regulator to control output frequency of the frequency converter after a series of fuzzy arithmetic and solution of fuzzy arithmetic, so as to achieve the purpose of pump speed and consumed power controlling. The operating principle of variable frequency and constant pressure water supply system and the design procedures of software programming are elaborated. Practical application shows that the variable frequency and constant pressure water supply system based on fuzzy control has good effect on energy saving and obvious economic benefits and is worth popularizing and applying.

The Design of Constant Pressure Water Supply Control System for City

2014 ◽  
Vol 1079-1080 ◽  
pp. 1018-1021
Author(s):  
Shi Chen Li
Keyword(s):  
Water Supply ◽  
Constant Pressure ◽  
Frequency Control ◽  
Frequency Converter ◽  
Supply System ◽  
Water Supply System ◽  
System Structure ◽  
Software Selection ◽  
Pressure Water ◽  
Selection Of

This paper mainly introduces the application of frequency control in constant pressure water supply, describes the principle of constant pressure water supply technology, and its system structure based. This paper presents the basic principle of the inverter and the composition of hardware and software, selection of a frequency converter in constant pressure water supply system and use, comprehensive introduction to the structure of the constant pressure water supply system.

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