This paper discribes several components of variable frequency speed controlling in living district constant-pressure water feed,introduces a constant-pressure water feed system make up of iPF inverter(lays inside IWS constant-pressure control device).

• 概述了变频调速器在生活区恒压供水中的几种构成方式，介绍了采用iPF变频器（内置IWS恒压供水控制基板）组成的恒压供水控制系统。