FIELD: electrical engineering.
SUBSTANCE: this invention concerns a method for determining a temperature of a pumped medium of a circulation pump, in particular a circulation pump of a heating system with an integrated electric drive unit, wherein the temperature of a working medium is determined, respectively, calculated based on a temperature of winding of an electric pumping unit and current in winding. According to the claimed method, the temperature of the working medium is determined based on the temperature of winding of the electric pumping unit and current flowing in winding, wherein the temperature of the working medium is determined by current in winding and by the measured temperature of winding, when using an observer, wherein the observer uses a pump model to simulate the operation of a pump, which, depending on the estimated temperature of the working medium and current in winding, outputs a simulated temperature of winding, wherein, in order to adjust the estimated temperature of the working medium by the difference between simulated and measured temperatures of winding, the observer determines a correction coefficient, which is returned to the pump model. A circulation pump and a method for determining parameters of a circulation pump are also proposed.
EFFECT: increase in informativity of received data.
10 cl, 3 dwg
