Invention Publication
- Patent Title: PREDICTION METHOD FOR STALL AND SURGING OF AXIAL-FLOW COMPRESSOR BASED ON DEEP AUTOREGRESSIVE NETWORK
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Application No.: US18014573Application Date: 2022-02-22
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Publication No.: US20240133391A1Publication Date: 2024-04-25
- Inventor: Yingshun LI , Ziqin GONG , Ximing SUN , Fuyang QUAN
- Applicant: DALIAN UNIVERSITY OF TECHNOLOGY
- Applicant Address: CN Dalian, Liaoning
- Assignee: DALIAN UNIVERSITY OF TECHNOLOGY
- Current Assignee: DALIAN UNIVERSITY OF TECHNOLOGY
- Current Assignee Address: CN Dalian, Liaoning
- International Application: PCT/CN2022/077168 2022.02.22
- Date entered country: 2023-01-05
- Main IPC: F04D27/00
- IPC: F04D27/00 ; G06N3/047

Abstract:
The present invention provides a prediction method for stall and surging of an axial-flow compressor based on a deep autoregressive network. Firstly, selecting and preprocessing surging experimental data of a certain type of aero-engine, and dividing the data into a training set and a test set. Secondly, building and training a deep autoregressive network model based on an attention mechanism, using the finally trained model to conduct real-time prediction on the test set, and giving a model loss and an evaluation index. Finally, using a prediction model to conduct real-time prediction on the test data, and giving a trend of surging probability varying with time in chronological order. The present invention uses the attention mechanism to effectively capture the features of the experimental data and accurately predict the surging probability, which improve the stability and accuracy of prediction, is beneficial to improving the performance of active control of the engine.
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