A Long-Time Series Forecast Method for Wind Turbine Blade Strain with Incremental Bi-LSTM Learning

This article presents a novel incremental forecast method to address the challenges in long-time strain status prediction for a wind turbine blade (WTB) under wind loading. Taking strain as the key indicator of structural health, a mathematical model is established to characterize the long-time seri...

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Main Authors: Bingkai Wang, Wenlei Sun, Hongwei Wang
Format: Article
Language:English
Published: MDPI AG 2025-06-01
Series:Sensors
Subjects:
Online Access:https://www.mdpi.com/1424-8220/25/13/3898
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author Bingkai Wang
Wenlei Sun
Hongwei Wang
author_facet Bingkai Wang
Wenlei Sun
Hongwei Wang
author_sort Bingkai Wang
collection DOAJ
description This article presents a novel incremental forecast method to address the challenges in long-time strain status prediction for a wind turbine blade (WTB) under wind loading. Taking strain as the key indicator of structural health, a mathematical model is established to characterize the long-time series forecast forecasting process. Based on the Bi-directional Long Short-Term Memory (Bi-LSTM) framework, the proposed method incorporates incremental learning via an error-supervised feedback mechanism, enabling the dynamic self-updating of the model parameters. The experience replay and elastic weight consolidation are integrated to further enhance the prediction accuracy. Ultimately, the experimental results demonstrate that the proposed incremental forecast method achieves a 24% and 4.6% improvement in accuracy over the Bi-LSTM and Transformer, respectively. This research not only provides an effective solution for long-time prediction of WTB health but also offers a novel technical framework and theoretical foundation for long-time series forecasting.
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issn 1424-8220
language English
publishDate 2025-06-01
publisher MDPI AG
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series Sensors
spelling doaj-art-648e0149e51e428cbeb39b79491c21b32025-08-20T03:28:59ZengMDPI AGSensors1424-82202025-06-012513389810.3390/s25133898A Long-Time Series Forecast Method for Wind Turbine Blade Strain with Incremental Bi-LSTM LearningBingkai Wang0Wenlei Sun1Hongwei Wang2School of Mechanical Engineering, Xinjiang University, Urumqi 830047, ChinaSchool of Mechanical Engineering, Xinjiang University, Urumqi 830047, ChinaSchool of Mechanical Engineering, Xinjiang University, Urumqi 830047, ChinaThis article presents a novel incremental forecast method to address the challenges in long-time strain status prediction for a wind turbine blade (WTB) under wind loading. Taking strain as the key indicator of structural health, a mathematical model is established to characterize the long-time series forecast forecasting process. Based on the Bi-directional Long Short-Term Memory (Bi-LSTM) framework, the proposed method incorporates incremental learning via an error-supervised feedback mechanism, enabling the dynamic self-updating of the model parameters. The experience replay and elastic weight consolidation are integrated to further enhance the prediction accuracy. Ultimately, the experimental results demonstrate that the proposed incremental forecast method achieves a 24% and 4.6% improvement in accuracy over the Bi-LSTM and Transformer, respectively. This research not only provides an effective solution for long-time prediction of WTB health but also offers a novel technical framework and theoretical foundation for long-time series forecasting.https://www.mdpi.com/1424-8220/25/13/3898Bi-LSTMincremental learninglong-time series forecaststrainwind turbine blade
spellingShingle Bingkai Wang
Wenlei Sun
Hongwei Wang
A Long-Time Series Forecast Method for Wind Turbine Blade Strain with Incremental Bi-LSTM Learning
Sensors
Bi-LSTM
incremental learning
long-time series forecast
strain
wind turbine blade
title A Long-Time Series Forecast Method for Wind Turbine Blade Strain with Incremental Bi-LSTM Learning
title_full A Long-Time Series Forecast Method for Wind Turbine Blade Strain with Incremental Bi-LSTM Learning
title_fullStr A Long-Time Series Forecast Method for Wind Turbine Blade Strain with Incremental Bi-LSTM Learning
title_full_unstemmed A Long-Time Series Forecast Method for Wind Turbine Blade Strain with Incremental Bi-LSTM Learning
title_short A Long-Time Series Forecast Method for Wind Turbine Blade Strain with Incremental Bi-LSTM Learning
title_sort long time series forecast method for wind turbine blade strain with incremental bi lstm learning
topic Bi-LSTM
incremental learning
long-time series forecast
strain
wind turbine blade
url https://www.mdpi.com/1424-8220/25/13/3898
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