基于区域极点配置的航空发动机LPV鲁棒控制器设计

Translated title of the contribution: LPV Robust Controller Design with Regional Pole Assignment for an Aero-Engine

Qiusheng Jia, Xinxing Shi, Yan Li, Huacong Li

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

The aerodynamic characteristics of aero-engine, which have a wide range of flight envelopes, vary drastically,so its controller is required to be able to adapt to a large range of parameter variations and have good robustness. To solve the above problem, based on the regional pole assignment, a new aero-engine multi-variable robust gain scheduled LPV control algorithm was proposed. Firstly, the Jacobian linearization method was used to obtain polynomial LPV model of aero-engine, which can describe its dynamic performance under certain conditions. Further, aiming at the polynomial LPV model, a LPV output feedback controller with the closed-loop system pole placement in a given region, which satisfied robust H performance requirement, is designed using the LMI method. Then the grid method is used to transform the Lyapunov functional which depend on the scheduling parameters into a single Lyapunov function, which can guarantee the system has good steady performance. Finally, simulation studies have carried out based on a certain turbofan engine. The simulation results show that the designed controller can realize the accurate tracking of control commands with response time less than 1.6 s, over shoot less than 1% and steady-state tracking error less than 0.1%. The control system can guarantee the global stability and has good robustness in the design envelope.

Translated title of the contributionLPV Robust Controller Design with Regional Pole Assignment for an Aero-Engine
Original languageChinese (Traditional)
Pages (from-to)1248-1256
Number of pages9
JournalXibei Gongye Daxue Xuebao/Journal of Northwestern Polytechnical University
Volume37
Issue number6
DOIs
StatePublished - 1 Dec 2019

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