MATHEMATICAL MODELING OF MULTI-UNITS PUMPING STATION WITH ASYNCHRONOUS ELECTRIC DRIVE OF CENTRIFUGAL PUMPS

Abstract

. Based on the system approach and the principle of electrohydrodynamic analogy, a formalized mathematical model of a generalized system of asynchronous centrifugal pumping units of a multi-unit pumping station with an asynchronous electric drive of centrifugal pumps was created. This model is easy to adapt to the specific configuration of the pumping station. A feature of the model is the use of such parameters of the centrifugal pump, which are calculated directly through the geometric dimensions of its internal elements, taking into account the dependence of these parameters on the physical properties of the working fluid. Unlike existing models, this makes it possible to take into account the influence of operational or emergency changes in pump parameters and operational changes in the physical properties of the working fluid both on its pumping regimes and on the operation regimes of the electric drive directly during the simulation. The scope of use and ways of improving the developed model, as well as the direction of further research, are proposed.