METHOD FOR CONTROL OF AC ELECTRONIC MOTOR AND TRACKING SYSTEM FOR ITS IMPLEMENTATION Russian patent published in 2018 - IPC H02P6/06 H02P6/12 H02P6/16 G05B13/02 

FIELD: electrical engineering.

SUBSTANCE: invention relates to electrical engineering and can be used for formation of control signals in a system with an AC electronic engine. In the control method, when converting the rotational angle of the synchronous engine shaft into a three-phase electrical signal from the rotor position sensor of the engine, amplitude of which is proportional to the control signal, and the formation of a three-phase supply voltage of the engine from it, in the method for control of an AC electronic engine three-phase power-supply voltage is generated of the difference between the signal of the three-phase sensor of the synchronous motor rotor position and the signal of the synchronous motor current three-phase sensor, herewith the relay control signal being generated by subtracting the angle feedback signal and the speed feedback signal from the signal, as well as the acceleration feedback signal. Tracking system for implementing the method comprises a series-connected modulator, three-phase synchronous engine rotor position sensor, three-phase demodulator, three-phase adder, three-phase relay, three-phase invertor, three-phase synchronous engine current sensor, three-phase synchronous engine, whose rotor is mechanically connected to the shaft of a three-phase synchronous engine rotor position sensor, with the speed sensor of the synchronous motor and through the gearbox with the synchronous motor angle sensor. Subtracting input of the three-phase adder is connected to the output of a three-phase current sensor of the synchronous engine. In the tracking system, an adder with four inputs, relay and observer, calculating the derivative of the input signal, whose input is connected to the output of the speed sensor. Modulator input is connected to the relay output, and the relay input is connected to the output of the adder with four inputs, first subtracting input of which is connected to the output of the synchronous engine angle sensor, the second subtracting input is connected to the output of the synchronous engine speed sensor, third subtracting input is connected to the observer output, and the summing input is the control input of the valve engine in the rotation angle.

EFFECT: technical effect: the creation of a system optimal for the accuracy of the rotation angle of the output shaft of the AC electric engine that is invariant (independent of the changing torque of the load) by analytically constructing the valve's optimal rotation accuracy in the valve controller and the valve controller subordinate to it.

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