CONTROL SYSTEM INTENDED TO VARY INPUT POWER SIMULTANEOUSLY WITH LOAD AND ROTATION SPEED AT ACTUATION OF GROUP OF ENGINES BY ONE INVERTER BRIDGE Russian patent published in 2016 - IPC H02P5/74 

FIELD: electricity.

SUBSTANCE: invention is attributed to the field of electric engineering and may be used for actuation of a group of electric engines. Technical result consists in power regulation depending on momentary change of load and momentary change of rotation speed for each operating electric engine in the drive system and effective energy saving. The control system intended to vary input power simultaneously with load and rotation speed by means of inverter bridge actuating several groups of engines includes the following units: unit (1) of stator voltage regulation; unit (2) of electric engines; unit (3) of rotor speed regulation; inverter bridge unit (4); control and actuation unit (5); signal processing unit (6). Due to installation of power factor transducer phase voltage and phased current are obtained as control signal for regulation of input signal so that it changes together with load. Moreover, to installation of power factor transducer and current sensor separate phase voltage of the engine, output current of the rectifier, current of overvoltage protection and operating current of circuit-breaker are obtained as control signal for regulation of output voltage so that it changes together with rotation speed.

EFFECT: change in output power is provided together with load and rotation speed.

10 cl, 4 dwg