A Design Method for Automatic Water Pump Frequency Control Script Based on PI Control Strategy
In the water treatment industry,a stable inflow is undoubtedly the first hurdle to maintain stable effluent quality.At present,the control method combining float ball and variable frequency regulation used in most domestic sewage lifting pump stations generally has problems such as insufficient effluent stability,high energy consumption waste of pump units,and inability to coordinate with sewage treatment plants for regulation.This article introduces a method of implementing automatic frequency regulation of water pumps based on PI control strategy by using script programming on the configuration software WinCC.This method can provide feedback to the domestic sewage lifting pump station based on the actual water demand of the sewage treatment plant and stabilize the outlet water volume of the pump station in real time,achieving the goal of stable water volume,energy conservation,and linkage control.Based on the universality of the configuration software WinCC,this method can be effectively and widely applied in the water treatment industry,and has achieved the expected results.
PI controlsewage treatment plantautomation controlWinCC scriptenergy saving
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