METHOD OF CONTROLLING SYNCHRONOUS ELECTRIC MOTOR WITH MINIMIZING REACTIVE POWER Russian patent published in 2024 - IPC H02P21/22 H02P21/12 

FIELD: electrical engineering.

SUBSTANCE: invention relates to electrical engineering and can be used for vector control of salient-pole synchronous motor with permanent magnets. Result is achieved by calculating the position of the current vector at which the condition for minimizing reactive power and linearizing the control structure by generating nonlinear signals supplied to the controllers is satisfied. Technical essence of the proposed method of controlling a salient-pole synchronous motor is as follows. Two setting signals are generated, phase currents are measured, signals of the measured phase currents are converted into two feedback signals, generated setting signals are compared with feedback signals and their difference is supplied to two controllers, signals from the output of controllers are converted using harmonic signals of the position sensor. Converted signals are converted to control pulses by means of pulse-width modulation. Control pulses are supplied to the corresponding inputs of the power converter, the DC voltage supplied to the corresponding inputs of the power converter is converted into an alternating three-phase voltage, alternating three-phase voltage is obtained, alternating three-phase voltage is supplied to stator windings of synchronous electric motor, synchronous motor is controlled.

EFFECT: increased efficiency of using power supplied to motor windings in conditions of current and voltage limitation of power supply, which allows to increase maximum speed of the motor and power supplied to the actuating mechanism.

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