Through application of frequency converter in constant pressure water supply system, the paper describes the economic feature and advantages of adopting AC frequency conversion speed control method.
通过变频器在恒压供水系统中的应用，阐述了采用交流变频调速控制方案的经济性和优越性。
The applied plan is introduced of frequency control system by the microcomputer for constant -pressure water supply to circulating pump stations, and the system is analysed.
介绍了微机控制变频恒压供水系统在循环泵站中的应用方案，并对系统进行了分析。
This article takes water -supply system of one school as an example, researches the application of PLC and frequency conversion speed adjustment technology in the electrical control system.
以某学校供水系统为例，研究了PLC及变频调速技术在电气控制中的应用。
As the application of the frequency control technology and programmable logic controller is flexibility, in the constant pressure water supply system they has been widely used.
由于变频调速技术和可编程程序控制器的应用灵活方便，在恒压供水系统中亦得到广泛的应用。
In this thesis, the focus is the principle of frequency conversion constant pressure water supply control, designing frequency conversion constant pressure water supply control system.
论文讨论了变频恒压供水控制原理，设计了变频恒压供水控制系统。
In this thesis, the focus is the principle of frequency conversion constant pressure water supply control, designing frequency conversion constant pressure water supply control system.
论文讨论了变频恒压供水控制原理，设计了变频恒压供水控制系统。
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