A Multivariable Control Algorithm for Variable Cycle Engine Based on Brain Emotional Learning Model

Abstract

A multi-variable control algorithm for a variable cycle engine based on a brain-emotional learning model, select the variable cycle engine control variables: main fuel flow, core engine fan diversion angle and tail nozzle area, output variables: high pressure compressor relative speed and drop pressure ratio; the control system includes a sensory input signal generator, an emotional cue signal generator, and a brain emotion learning module; wherein, the sensory input signal generator and the emotional cue signal generator receive the output error of the output variable of the variable cycle engine, and generate sensory input signals respectively The sensory hint signal is input to the brain emotion learning module; the brain emotion learning module receives the sensory input signal and the emotional hint signal, and obtains the control variable of the variable cycle engine. The algorithm of the invention can improve the coupling problem of the multivariable control of the variable cycle engine and the problem that the traditional control method relies too much on the accuracy of the model, and realize the fast, accurate and stable control of the variable cycle engine, which has important engineering significance.

Description

technical field [0001] The invention belongs to the technical field of aero-engine control, and in particular relates to a multi-variable control algorithm of a variable-cycle engine based on a brain-emotional learning model. Background technique [0002] Aeroengines provide flight power for aircraft, and their development level is an important criterion for measuring a country's modernization level and national defense strength. The variable cycle engine can be regarded as a combination of a turbojet engine and a turbofan engine, thereby obtaining stronger performance than a single turbofan or turbojet engine, and is an ideal power plant for future military and civil aircraft. When the flight conditions or performance requirements of the aircraft change, the variable cycle engine needs to quickly adjust the geometrically variable components and the main fuel flow to change its thrust, speed and fuel consumption rate, so that it can quickly adapt to the environmental state a...

AI Technical Summary

Problems solved by technology

And the difference algorithm is used to solve the problem that the proposed algorithm increases rapidly with the increase of control variables, and the controller parameters also increase sharply, realizing the combined adjustment of multiple adjustable parts of the variable cycle engine

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