Nonlinear monitoring of the centrifugal compressor surge process based on the correlation integral method

SUN Tao; XU Guang-hua; ZHANG Chun-mei

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Nonlinear monitoring of the centrifugal compressor surge process based on the correlation integral method

更新时间：2026-07-07

- Nonlinear monitoring of the centrifugal compressor surge process based on the correlation integral method
- Vol. 21, Issue 6, (2006)
- 作者机构：
  
  1. 西安交通大学机械工程学院,陕西,西安,710049
  2. 西安交通大学机械制造系统工程国家重点实验室,陕西,西安,710049
  3. 西安交通大学能源与动力工程学院,陕西,西安,710049
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2006
- 稿件说明：
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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：

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：

摘要

相关积分算式中参考距离的取值显著影响计算结果

本文以相关积分值的物理意义和两点距离序列的分布规律为依据引出了参考距离的取值原则。为了定量分析离心压气机失稳和喘振的程度

分别定义了基于参考距离的相对非平稳度和基于相关积分值的喘振强度。以实验分析论证了相关积分值等三个监测参数在离心压气机运行工况监测、喘振强度辨识和压力信号非平稳性度量中的有效性。

Abstract

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.

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Related Institution

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