风电互补恒压供水系统控制器的设计

Controller Design of Wind Power Constant Pressure Water Supply System

为降低恒压供水系统的耗电量,将风能作为辅助动力源,通过PLC控制器,采用模糊控制技术设计了一种风电互补恒压供水系统。当风力机驱动泵供水量充足时,PLC调节电动调节阀以控制风力供水支路的流量,使管网压力保持于设定范围内;当风力供水不足时,PLC调节电动调节阀使风力供水支路的扬程达到设定值。同时,PLC通过变频调速方式,调节电动泵的转速以补充系统所需,实现了风力自动投入以减少电力消耗的目的。

For reducing the energy consumption of constant pressure water supply system, wind power is used as assistant energy and wind power constant pressure water supply system is designed on the basis of fuzzy control and PLC controller. When the wind power is enough to driving pump, the PLC controls electric regulating valve to cope with discharge of water supply branch for making the water pressure of pipe networks within the given range. Otherwise, the PLC keeps the head of the water supply branch within the designed scope. At the same time, the rotational speed of pump is adjusted to supplement the system requirement by PLC variable-frequency control. Thus, it realizes the reduction of power consumption by the automatic operation wind power.