变频恒压供水系统新型控制方法  

The Novel Control Method of Variable Frequency Constant Pressure Water Supply System

作　　者：李生民[1] 黄澔[1] 李杨[1] 孙旭霞[1] 许东霞[1] 

机构地区：[1]西安理工大学自动化与信息工程学院

出　　处：《变频器世界》2009年第3期48-50,73,共4页The World of Inverters

摘　　要：鉴于恒压供水系统存在PID参数整定困难以及多数没有定时强迫切泵功能的问题,设计了基于OPLC的新型变频恒压控制系统,优化了多泵循环切换的控制算法,实现了系统PID参数在线自整定、多泵自动循环和定时强迫切换的控制功能。实际运行结果表明,该系统功能完善,性能可靠。Because the difficulty of self-tuning PID parameter and less timing-forceswitching multi-pumps in current constant pressure water supply system, a novel system based on OPLC is proposed. The control algorithm of switching water pumps is optimized, PID parameter self-tuning, multi-pumps cycling automatically and switching pumps by force in an assigned time are implemented. The results indicate that the system has perfect function and reliable performance,

关 键 词：变频恒压供水 PID参数自整定 多泵循环 

分 类 号：TM921[电气工程—电力电子与电力传动]