应用电子技术按设定频率上、下限实现自动转换的双通道积分电路，并按此设计PLC控制的变频调速高楼供水系统。
Variable frequency altering-speed system of supplying water for high building using PLC control was designed by double-channel integral circuit.
本文介绍了一种高楼稳压供水系统的设计方案，它采用单回路闭环定值控制。
It is the single loop setting control system, which is adjusted by the PID controller and the frequency controller.
本文介绍了一种高楼稳压供水系统的设计方案，它采用单回路闭环定值控制。
It is the single loop setting control system, which is adjusted by the PID controller and the frequency controller.
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