Application of Fast Wavelet Analysis on Early Stall Warning in Axial Compressors

The timely detection of stall inception is of great significance for safe operation and stability control of axial compressor. In the current study, a fast wavelet tool was selected to predict stall precursor in axial compressors with spike-type and modal-wave stall inception. Dynamic pressure was measured in the casing wall by using a collection of time-resolved pressure transducers with circumferential and chord-wise spatial resolution. Fast wavelet analysis with low frequency reconstruction results demonstrate that the initial inception can be detected 110 rotor revolutions prior to stall for modal-wave stall inception in a 1.5 stage axial compressor. For spike-type stall inception, despite the failure of early stall warning via low frequency reconstruction, an increase amplitude frequency band of 0.2-0.8 blade passing frequency was identified using high frequency reconstruction in an isolated-rotor axial compressor. Fast wavelet method can predict two kinds of stall inceptions simultaneously in advance and realize the early stall warning in axial compressors through a reasonable selection of reconstructed frequency.

[1]  Ingrid Daubechies,et al.  Ten Lectures on Wavelets , 1992 .

[2]  Masahiro Inoue,et al.  Comparative studies on short and long length-scale stall cell propagating in an axial compressor rotor , 2000 .

[3]  Edward M. Greitzer,et al.  Active suppression of aerodynamic instabilities in turbomachines , 1989 .

[4]  Manuj Dhingra,et al.  A Stochastic Model for a Compressor Stability Measure , 2007 .

[5]  Qiushi Li,et al.  Effects of Radial Loading Distribution on Partial-Surge-Initiated Instability in a Transonic Axial Flow Compressor , 2017 .

[6]  Xiaofeng Sun,et al.  Further Investigation on Acoustic Stall-Warning Approach in Compressors , 2019 .

[7]  Feng Lin,et al.  Long-to-Short Length-Scale Transition: A Stall Inception Phenomenon in an Axial Compressor With Inlet Distortion , 2006 .

[8]  Edward M. Greitzer,et al.  1997 Best Paper Award—Controls and Diagnostics Committee: Active Stabilization of Rotating Stall and Surge in a Transonic Single-Stage Axial Compressor , 1998 .

[9]  Feng Lin,et al.  Wavelet analysis of rotor-tip disturbances in an axial-flow compressor , 2004 .

[10]  Gang Xu,et al.  Micro Air Injection and Its Unsteady Response in a Low-Speed Axial Compressor , 2002 .

[11]  Stéphane Mallat,et al.  A Theory for Multiresolution Signal Decomposition: The Wavelet Representation , 1989, IEEE Trans. Pattern Anal. Mach. Intell..

[12]  Jun Li,et al.  Stall-Warning Approach Based on Aeroacoustic Principle , 2016 .

[13]  Masato Furukawa,et al.  Short and Long Length-Scale Disturbances Leading to Rotating Stall in an Axial Compressor Stage With Different Stator/Rotor Gaps , 2002 .

[14]  Jichao Li,et al.  Self-Adaptive Stability-Enhancing Technology With Tip Air Injection in an Axial Flow Compressor , 2017 .

[15]  Ji-chao Li,et al.  Stability Enhancement With Self-Recirculating Injection in Axial Flow Compressor , 2018 .

[16]  Dirk C. Leinhos,et al.  Stall inception in the compressor system of a turbofan engine , 2000 .

[17]  Du Juan,et al.  The Impact of Casing Groove Location on Stall Margin and Tip Clearance Flow in a Low-Speed Axial Compressor , 2016 .

[18]  Ivor Day.  Active suppression of rotating stall and surge in axial compressors , 1993 .

[19]  Ivor Day,et al.  1997 Best Paper Award—Turbomachinery Committee: A Study of Spike and Modal Stall Phenomena in a Low-Speed Axial Compressor , 1998 .

[20]  Simeng Tian,et al.  CFD-Aided Design of a Transonic Aeroelastic Compressor Rig , 2019, Journal of Turbomachinery.

[21]  Masato Furukawa,et al.  Propagation of Multiple Short-Length-Scale Stall Cells in an Axial Compressor Rotor , 2000 .

[22]  Ivor Day,et al.  A study of spike and modal stall phenomena in a low-speed axial compressor , 1997 .

[23]  Ryosuke Shibasaki,et al.  Wavelet Analysis and Its Application , 1996 .

[24]  S. Mallat.  Multiresolution approximations and wavelet orthonormal bases of L^2(R) , 1989 .

[25]  Alan H. Epstein,et al.  Prestall Behavior of Several High-Speed Compressors , 1995 .

[26]  Tom Hynes,et al.  Stall Inception in Axial Compressors , 1990 .

[27]  James D. Paduano,et al.  Rotating Stall Control in a High-Speed Stage With Inlet Distortion: Part I—Radial Distortion , 1999 .

[28]  Ivor Day.  Stall inception in axial flow compressors , 1993 .

[29]  Tianyu Pan,et al.  Numerical Investigations on Partial Surge Initiated Inception and Stall Evolution in a Transonic Compressor , 2017 .

[30]  Jingyi Chen,et al.  TIME-FREQUENCY ANALYSIS OF COMPRESSOR ROTATING STALL BY MEANS OF WAVELET TRANSFORM , 1996 .

[31]  Eisuke Outa,et al.  Active Stall Control With Practicable Stall Prediction System Using Auto-Correlation Coefficient , 2001 .

[32]  L. Valavani,et al.  Active control of rotating stall in a low-speed axial compressor , 1993 .