Forecasting top oil temperature for UHV reactor using Seq2Seq model with convolutional block attention mechanism

IF 1.1 4区 工程技术 Q4 ENGINEERING, ELECTRICAL & ELECTRONIC
Hao Jiang, Hongwei Zhang, Jing Chen, Sa Xiao, Xiren Miao, Weiqing Lin
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引用次数: 0

Abstract

The top oil temperature in ultra-high voltage (UHV) reactors has attracted enormous interest due to its wide applications in fault diagnosis and insulation evaluation. In this work, the precise prediction method based on the Seq2Seq module with the convolutional block attention mechanism is proposed for the UHV reactor. To reduce the influence of vibratility and improve computational efficiency, a combination of the encoding layer and decoding layer named Seq2Seq is performed to reconstruct the complex raw data. The convolutional block attention mechanism (CBAM), composed of spatial attention and channel attention, is utilized to maximize the use of information in data. The Seq2Seq-CBAM is established to forecast the variation tendency of the oil temperatures in the UHV reactor. The experimental results show that the proposed method achieves high prediction accuracy for the top oil temperature in both single-step and multi-step.
利用带卷积块注意机制的Seq2Seq模型预测特高压反应堆顶油温度
超高压反应堆的顶油温度在故障诊断和绝缘评定中有着广泛的应用,引起了人们的广泛关注。本文提出了一种基于Seq2Seq模块和卷积块关注机制的特高压电抗器精确预测方法。为了减少振动的影响,提高计算效率,采用编码层和解码层的组合,即Seq2Seq,对复杂原始数据进行重构。利用由空间注意和通道注意组成的卷积块注意机制(convolutional block attention mechanism, CBAM)来最大限度地利用数据中的信息。建立了Seq2Seq-CBAM模型,用于预测特高压反应器内油温的变化趋势。实验结果表明,该方法对单步和多步的最高油温预测精度较高。
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来源期刊
CiteScore
1.70
自引率
0.00%
发文量
100
审稿时长
4.6 months
期刊介绍: The aim of the International Journal of Applied Electromagnetics and Mechanics is to contribute to intersciences coupling applied electromagnetics, mechanics and materials. The journal also intends to stimulate the further development of current technology in industry. The main subjects covered by the journal are: Physics and mechanics of electromagnetic materials and devices Computational electromagnetics in materials and devices Applications of electromagnetic fields and materials The three interrelated key subjects – electromagnetics, mechanics and materials - include the following aspects: electromagnetic NDE, electromagnetic machines and devices, electromagnetic materials and structures, electromagnetic fluids, magnetoelastic effects and magnetosolid mechanics, magnetic levitations, electromagnetic propulsion, bioelectromagnetics, and inverse problems in electromagnetics. The editorial policy is to combine information and experience from both the latest high technology fields and as well as the well-established technologies within applied electromagnetics.
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