Volume 28 Issue 5
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ZHANG Hai-bo, HUA Wei, WU Wei-chao. Active stability control method for turbofan engine based on post-stall model[J]. Journal of Aerospace Power, 2013, 28(5): 1150-1158.
Citation: ZHANG Hai-bo, HUA Wei, WU Wei-chao. Active stability control method for turbofan engine based on post-stall model[J]. Journal of Aerospace Power, 2013, 28(5): 1150-1158.
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Active stability control method for turbofan engine based on post-stall model

  • 1.

    College of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China

  • 2.

    China Aviation Motor Control System Institution, Aviation Industry Corporation of China, Wuxi Jiangsu 214063, China

  • Received Date: 2012-04-22
  • Publish Date: 2013-05-28
    Abstract
  • A method to set up turbofan engine post-stall model was proposed in consideration of the volume effectiveness,the characteristics of post-stall of the fan and compressor,the combustors with rich fuel and lean fuel characteristics.The models of engine inlet's total temperature distortion,total pressure distortion,and the combination of two kinds of distortions were established.The active control method proposed was based on the correlation measure of pressure.Correlation measure threshold crossing events increased in magnitude and number as the compressor approached the limit of stable operation,so the stall margin could be calculated in a real-time manner.The active control mode was established based on robust control design method.At last,the numerical simulations were carried out.The results show that the active control based on the method of correlation measure successfully makes the compressing part of engine do not enter into stall during transient process,highly improving the dynamic response in the whole transient process.

     

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