GAS-TURBINE ENGINE AUTOMATIC CONTROL SYSTEM Russian patent published in 2008 - IPC F02C9/28 

FIELD: engineering mechanical; gas-turbine engines.

SUBSTANCE: invention relates to automatic control systems of gas-turbine engines. According to invention, automatic control system of gas-turbine engine contains the following devices connected in series: rotor speed meter, first comparison element algebraic minimum selector, rotor speed channel correcting link and summer, series-connected difference correcting link and switch. Output of algebraic minimum selector is connected with input of difference correcting link, and output of switch is connected with second input of summer. System contains also series-connected actuator, gas-turbine engine, gas temperature meter and second comparison element, output of summer being connected with input of actuator. Second output of gas-turbine engine is connected with rotor speed meter, and output of second comparison element is connected with second input of algebraic minimum selector. It has series-connected comparator, differentiator and memory, inputs of comparator being connected to outputs of first and second comparison elements and output is connected with second input of switch. Output of difference correcting link is connected with second input of memory. Rotor speed setter is connected to second input of first comparison element, and gas temperature setter is connected to second input of second comparison element. Proposed system differs from known ones as it contains additionally compensator whose input is connected with output of memory and output is connected with third input of summer.

EFFECT: improved dynamic accuracy of control at selection by elimination of temperature rises and temperature jumps and zone of combined operation of channels.

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