Journal of Northeastern University ›› 2012, Vol. 33 ›› Issue (4): 457-460.DOI: -

• OriginalPaper •     Next Articles

Centrifugal compressor modeling based on differential evolution algorithm

Niu, Da-Peng (1); Wang, Xiao-Gang (1); Dong, Shi-Jian (1); Wang, Fu-Li (1)   

  1. (1) School of Information Science and Engineering, Northeastern University, Shenyang 110819, China; (2) State Key Laboratory of Synthetical Automation for Process Industries, Northeastern University, Shenyang 110819, China
  • Received:2013-06-19 Revised:2013-06-19 Published:2013-04-04
  • Contact: Niu, D.-P.
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Abstract: The mechanism model of single stage compressor was built on the basis of the centrifugal compressor's characteristics, the fluid mechanics, the energy conservation and the mass conservation principles. Several models of single stage compressors in series were integrated to compose the mechanism model of a steel CCPP gas system's three-level centrifugal compressor on the low pressure side. The parameter identification problem of the multi-stage compressor model was transformed into an optimization problem, and differential evolution algorithm was used to decide the unknown parameters in the model. Model validation results showed that the developed model could reflect the operating characteristics of centrifugal compressors and laid a model foundation for compressors' anti-surge control.

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