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| Research on Early Warning of Abnormal Working Conditions of Wind Turbine Based on QM-DBSCAN and BiLSTM |
| MA Liangyu1,2,LIANG Shuyuan1,CHENG Dongyan1,GENG Yanzhu1,DUAN Xinhui1,3 |
1.Department of Automation, North China Electric Power University, Baoding, Hebei 071003, China
2.Baoding Key Laboratory of State Detection and Optimization for Integrated Energy System, Baoding, Hebei 071003, China
3.Baoding SinoSimu Technology Co.Ltd, Baoding, Hebei 071000, China |
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Abstract A wind turbine fault warning method based on quartile method(QM)-density-based spatial clustering of applications with noise(DBSCAN) and Bi-directional long and short-term memory network (BiLSTM) is proposed.Firstly, in view of the difficulty of cleaning the power limit point in the wind speed-power diagram, the combination of QM and DBSCAN is proposed to preprocess the modeling operation data. secondly, by analyzing the operation principle of wind turbine and determining the input and output parameters of the normal working condition prediction model of wind turbine combined with LightGBM feature selection method, a high-precision normal performance prediction model of wind turbine is established based on BiLSTM.Then, the state performance index of the fan is determined by the sliding window algorithm, and the index threshold is determined by statistical interval estimation method.Finally, the real fault data of the fan is used to carry out the early warning experiment of the abnormal working condition of the whole wind turbine, which verifies the effectiveness of the method.
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Received: 31 May 2023
Published: 26 September 2024
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2024, Vol. 45 
