SUN Tao, XU Guang-hua, ZHANG Chun-mei. Nonlinear monitoring of the centrifugal compressor surge process based on the correlation integral method[J]. 2006, 21(6).
SUN Tao, XU Guang-hua, ZHANG Chun-mei. Nonlinear monitoring of the centrifugal compressor surge process based on the correlation integral method[J]. 2006, 21(6).DOI:
The reference distance in the correlation integral formula affects the computational value of correlation integral dramatically.In this paper
the method of setting values for the reference distance was presented on the basis of the physical meaning of the correlation integral value and the distribution of all inter-points distances at different operating conditions.Relative degree of unsteadiness based on the reference distance and intensity of surge based on the correlation integral value were defined to analyze the degree of instability and surge in centrifugal compressors quantitatively.By means of applying these measuring parameters to a case of our experiment
it demonstrates that the correlation integral value
etc.are effective for the nonlinear monitoring of operating condition
identification of surge intensity and measuring of pressure unsteadiness in centrifugal compressors.