使用基于异质气体传感器阵列的Time2Vec编码CNN-变压器-LSTM模型在干扰下持续监测硫六化物特征气体
Tengfei Li1,2, Yongan Zhang1,2, Hongming Sun1,2
1State Key Laboratory for Manufacturing Systems Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, P. R. China.
ACS sensors
|October 30, 2025
概括
这项研究开发了一种新的深度学习框架和异质传感器阵列,以准确检测气体绝缘开关设备 (GIS) 系统中危险的硫六化物 (SF6) 分解产物,从而提高安全性和可靠性.
科学领域:
- 电气工程 电气工程
- 材料科学 材料科学 材料科学
- 化学工程是化学工程的重要组成部分.
背景情况:
- 气体绝缘开关装置 (GIS) 系统依赖硫化 (SF6) 进行绝缘.
- 在部分放电 (PD) 下的SF6分解会产生危险气体,如H2S,SO2,CO和H2.
- 由于传感器的交叉敏感性,检测这些混合气体具有挑战性.
研究的目的:
- 设计一种异质气体传感器阵列,用于检测SF6分解产品.
- 开发一种新的深度学习框架,用于准确识别和量化这些气体.
- 评估阵列中的单个传感器的性能和贡献.
主要方法:
- 将金属氧化物半导体 (MOS),电化学和Pd-Au合金传感器集成到一个异质阵列中.
- 开发一个Time2Vec编码的CNN-Transformer-LSTM深度学习模型用于气体混合物分析.
- 使用数据增强技术,特别是高斯随机噪声注入,以增强模型概括性.
- 与经典机器学习模型 (SVM,RF,KNN,MLP) 的比较分析.
主要成果:
- 拟议的模型实现了97.0%的分类准确性和97.3%的F1分数.
- 度估计得出的平均R2为97.6%.
- Pd-Au合金气传感器表现出高的H2选择性,这对于减轻交叉敏感性至关重要.
结论:
- 不同质的传感器阵列和深度学习框架有效监测SF6分解产品.
- 高斯式噪声注入显著改善了模型性能.
- 该系统显示了在GIS应用程序中进行在线监控的巨大潜力,提高了安全性和运营完整性.
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