Specific features of operating pumping units and the tasks of ensuring energy-saving modes of operation by controlling them
Kudrat Abidov, O. O. Zaripov, Nargiza Khamudkhanova, Мokhira Idriskhodjaeva, Sh. O. Zaripova
Abstract
Currently, in practice of machine water lifting as a drive of pumping unit only unregulated electric drives is used. In order to coordinate water supply regime of meliorative pumping station with schedule of water consumption, the only practically used way of regulating its productivity is to change the number of operating units, which provides step- by-step regulation of supplied flow rate. In this case, there is a discrepancy between the actual water consumption schedule and its coverage provided by the operation of the pumping unit of the pumping stations in the vast majority of the pumping stations in operation. Therefore, as a rule, in order to avoid crop yield losses, the pumping stations of the pumping stations knowingly operate with the overestimated coverage schedule, which contributes to unjustified overuse of water resources and electric energy.