改进麻雀搜索算法优化VMD-CNN-BiLSTM的光伏阵列故障诊断研究

于洋; 郭栋; 徐艺; 王鹏伟; 高超; 隋永佳

doi:10.19912/j.0254-0096.tynxb.2024-2338

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太阳能学报 ›› 2026, Vol. 47 ›› Issue (5) : 627-638. DOI: 10.19912/j.0254-0096.tynxb.2024-2338

改进麻雀搜索算法优化VMD-CNN-BiLSTM的光伏阵列故障诊断研究

于洋, 郭栋, 徐艺, 王鹏伟, 高超, 隋永佳

作者信息 +

RESEARCH ON FAULT DIAGNOSIS OF PHOTOVOLTAIC ARRAY BASED ON VMD-CNN-BiLSTM OPTIMIZED BY IMPROVED SPARROW SEARCH ALGORITHM

Yu Yang, Guo Dong, Xu Yi, Wang Pengwei, Gao Chao, Sui Yongjia

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文章历史 +

摘要

为提高光伏阵列故障诊断的精度与可靠性,并实现故障类型的准确识别,提出一种基于改进麻雀搜索算法（ASFSSA）优化变分模态分解（VMD）与卷积神经网络-双向长短期记忆网络（CNN-BiLSTM）的故障诊断方法。首先,通过ASFSSA算法优化VMD的模态分量K和惩罚系数α,提升信号分解的性能和时间效率;然后,利用优化后的VMD对光伏阵列故障信号进行多层次分解,提取高辨识度的特征分量;最后,将这些特征输入CNN-BiLSTM模型,进行深度特征学习和故障类型分类。实验结果表明,所提方法能有效提取光伏阵列的故障特征,故障诊断的平均精度达到98.97%,在实际光伏电站实测数据集上的诊断准确率达到99.30%,优于其他对比模型,证实了所提方法的可行性和有效性。

Abstract

To address the challenges in precise fault identification and diagnostic reliability enhancement for photovoltaic （PV） arrays, this study develops an integrated fault diagnosis framework incorporating Adaptive Sparrow Search Algorithm （ASFSSA）-optimized Variational Mode Decomposition （VMD） with a hybrid Convolutional Neural Network-Bidirectional Long Short-Term Memory （CNN-BiLSTM） architecture. The framework comprises three principal phases： Initially, ASFSSA-driven parameter optimization is implemented for VMD's critical parameters （modal components K and penalty coefficient α）, enhancing computational efficiency and decomposition precision. Subsequently, the optimized VMD algorithm performs multiscale decomposition of PV array fault signals to selectively extract discriminative feature components. Ultimately, these processed features are fed into the CNN-BiLSTM network for hierarchical feature abstraction and multi-class fault pattern recognition. Comprehensive experimental evaluations demonstrate the framework's superior performance, achieving 98.97% mean diagnostic accuracy on benchmark datasets and 99.30% accuracy on operational PV plant fault data, surpassing benchmark models in both controlled and real-world scenarios. These quantitative outcomes substantiate the technical viability and diagnostic effectiveness of the proposed intelligent fault diagnosis system.

导出引用

于洋, 郭栋, 徐艺, 王鹏伟, 高超, 隋永佳. 改进麻雀搜索算法优化VMD-CNN-BiLSTM的光伏阵列故障诊断研究[J]. 太阳能学报. 2026, 47(5): 627-638 https://doi.org/10.19912/j.0254-0096.tynxb.2024-2338

Yu Yang, Guo Dong, Xu Yi, Wang Pengwei, Gao Chao, Sui Yongjia. RESEARCH ON FAULT DIAGNOSIS OF PHOTOVOLTAIC ARRAY BASED ON VMD-CNN-BiLSTM OPTIMIZED BY IMPROVED SPARROW SEARCH ALGORITHM[J]. Acta Energiae Solaris Sinica. 2026, 47(5): 627-638 https://doi.org/10.19912/j.0254-0096.tynxb.2024-2338

中图分类号： TM615

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