Master-Slave Interpolation Modeling of Compressor Healthy Parameters Based on Kriging Algorithm

ZENG Li; CHEN Renxiang; DONG Shaojiang

doi:10.3969/j.issn.0258-2724.20191118

Volume 56 Issue 5

Oct. 2021

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Journal of Southwest Jiaotong University > 2021 > 56(5): 967-972.

ZENG Li, CHEN Renxiang, DONG Shaojiang. Master-Slave Interpolation Modeling of Compressor Healthy Parameters Based on Kriging Algorithm[J]. Journal of Southwest Jiaotong University, 2021, 56(5): 967-972. doi: 10.3969/j.issn.0258-2724.20191118

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ZENG Li, CHEN Renxiang, DONG Shaojiang. Master-Slave Interpolation Modeling of Compressor Healthy Parameters Based on Kriging Algorithm[J]. Journal of Southwest Jiaotong University, 2021, 56(5): 967-972. doi: 10.3969/j.issn.0258-2724.20191118

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Master-Slave Interpolation Modeling of Compressor Healthy Parameters Based on Kriging Algorithm

doi: 10.3969/j.issn.0258-2724.20191118

Received Date: 26 Nov 2019
Rev Recd Date: 30 Jun 2020

Available Online: 13 Aug 2021

Publish Date: 15 Oct 2021

Abstract

Abstract

In order to solve the problem that the accuracy of the model is low due to the lack of compressor flow coefficient in the process of digital modeling of gas turbine compressor, a master-slave interpolation model for flow coefficient is constructed based on the Kriging interpolation algorithm. The distribution characteristics of flow coefficient in high-dimensional space are studied. The mapping relationship among flow coefficient, conversion speed and pressure ratio are explored, and a high-dimensional sample construction method for these three parameters is proposed. A high-precision flow coefficient master-slave interpolation model of gas turbine under transient conditions is established based on the Kriging algorithm. The results show that compared with the traditional Kriging interpolation method and the Newton interpolation method, the calculation result of flow coefficient based on master-slave model is closer to the actual value, and the calculation accuracy is improved by nearly 10%. In addition, the master model can output the estimated vector. Compared with the traditional Kriging model, the interpolation efficiency is improved by nearly 15%.
- compressor,
- flow coefficient,
- Kriging algorithm,
- master-slave mode

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References

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Master-Slave Interpolation Modeling of Compressor Healthy Parameters Based on Kriging Algorithm

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