Reducing reactive energy consumption by optimizing operating modes of irrigation pumping stations

Abstract

The article develops energy and resource efficiency modes of the technological process that meet the requirements of the “frequency converter - asynchronous motor - pump - pressure pipeline” system as a control object. Methods for regulating water pressure and water flow produced by pumping units are considered in order to ensure a schedule for water supply to irrigation pumping stations. The active, reactive and total electrical energies received by an asynchronous motor to change water flow by changing the position of the pressure valve in the pressure pipeline are calculated. In order to optimize water flow and water pressure by changing the speed of rotation of the pump impeller, the frequency converter system of an asynchronous motor with a squirrel-cage rotor was calculated and compared with the method of changing water flow using a push valve, by calculating active, reactive and total electrical energy from the network.