METHOD FOR SWITCHING WINDINGS OF ELECTRIC MACHINE Russian patent published in 2021 - IPC H02P6/14 

FIELD: electrical engineering.

SUBSTANCE: invention relates to the field of electrical engineering, in particular to control systems for electric machines. The method for switching the windings of an electric machine consists in the fact that during the operation of an electric machine, a short-term interruption of all power phase circuits is carried out each time at the moment when the phase voltage on the winding after passing the maximum value begins to decrease, for a time equal to the action time of the first half-period pulse of the transient process in the windings of the electric machine. The duration of the interruption of the power phase circuits of an electric machine is determined by the value of the signal from the current measuring element. The angular value of the pulse of interruption of power phase circuits has a direct dependence on the value of the current flowing in them. Electrical energy recovery occurs in all operating modes of the electric machine and, as a result, reduces the input power while maintaining the output power.

EFFECT: increased efficiency of the electric machine due to the recovery of energy of transient processes occurring in the windings of electric machines.

4 cl, 2 dwg