Simulation Research on Order of Variable Weight Function in Aeroengine Control
In this paper,a control method for civil aero-engine transition process is proposed.Based on the piece-wise linear model of the aero-engine with nonlinear compensation term,a performance index function with the weight terms of the coupled state variables is established,and a variable weight SDRE control algorithm is designed to control the transition process.The simulation results show that the SDRE control algorithm can improve the response speed of aero-engine speed while reducing fuel consumption compared with the constant weight control algorithm.At the same time,the simulation results show that the higher the order of variable weight function is,the faster the rise time of rotor speed response is,and the fuel flow first decreases and then increases with the rise of order.Finally,the reasons for this result are analyzed.
Aeroengine controlTransient processState-dependent Riccati equation control algorithmVariable weight performance indicator function
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