NDLI: Local observer for axial flow aeroengine compressors

Content Provider	IEEE Xplore Digital Library
Author	Xuejun Gao Tingwen Huang Jun Liu Mingqing Xiao
Copyright Year	2012
Description	Author affiliation: Faculty of Applied Mathematics, Guangdong University of Technology, Guangzhou 510006, China (Xuejun Gao) \|\| Department of Mathematics, Southern Illinois University, Carbondale, 62901, USA (Jun Liu; Mingqing Xiao) \|\| Department of Mathematics, Texas A & M University at Qatar, Doha, Qatar 23874 (Tingwen Huang)
Abstract	Instability phenomena occurred in aeroengines are certainly very undesirable. The unstable flow not only causes a drastic reduction in the performance of the compressor but also can damage to engine's components during operations. Thus it is necessary and critical to employ various feedback control mechanism to stabilize the system. Current all proposed feedback controllers in literature require the full information of the disturbance at the duct entrance, which is an infinite-dimensional quantity and thus is impossible for a direct on-line measurement in reality. In this paper, we construct a local state observer which can deliver the full information of the disturbance by only sensing on an arbitrarily small area at the duct entrance. The approach relies on the semigroup theory as well as operator spectrum analysis. Numerical simulations are provided to illustrate the effectiveness of the proposed observer by demonstrating different types of flow situations for the aeroengine compressors.
Starting Page	2233
Ending Page	2238
File Size	778683
Page Count	6
File Format	PDF
ISBN	9781467313971
e-ISBN	9781467313988
DOI	10.1109/WCICA.2012.6358246
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-07-06
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Equations Observer design Aeroengine compressor Rotating stall and surge Error dynamics
Content Type	Text
Resource Type	Article

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