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

FIELD: engines and pumps.

SUBSTANCE: invention relates to gas turbine engine automatic control systems the operating conditions of which are set by controlling n parameters. The proposed system incorporates additionally the following components connected in series, i.e. oscillation initiation detector (made up of an amplitude detector and a relay element connected in series), a logical multiplication element, the first differentiating component, a memory unit, the second differentiating element and an adder. Note that the oscillation initiation detector input is connected to the first comparator output, adder second input is connected to a minimum selector while the adder out is connected to the actuator input. The third comparator first input is connected to the gas temperature controller output, with its output being connected to the memory unit second input. The logical multiplication element second input is connected to the combined operation section detector output, with its output being connected to the switcher control input. Note here that the switcher first input is connected to the rotor rpm controller output, with its second input being connected to the signal generator. The switcher output is connected to the minimum selector first input and the third comparator second input.

EFFECT: higher ACS stability, switching over to control by means of a stable limitation channel.

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