精选优质文档-倾情为你奉上恒压供水系统控制策略及其实现摘要: 为了提高大范围变负荷恒压供水系统的控制精度和可靠性,提出了采用多台水泵分级控制、轮流变频的控制策略，结合大范围变负荷供水系统的特点对常规PID控制算法作了一些相应的改进;通过基于USS协议的标准驱动产品和PLC的组合,实现系统硬件、软件和通信的设计,从而改进了大范围恒压供水系统的控制品质。关键词: 现场总线;USS协议;PLC;变频器调速;联锁控制;PID控制;不完全微分Control strategy of water supplying system with constant pressure and its implement. Abstract: In order to improve the control precision and stability, the control strategy that several bumps are cont rolled in grades and frequency conversion by turns, which is app l
