午夜爽爽爽,国产区在线视频,女同二区

基于VGG16圖像特征提取和SVM的電能質量擾動分類

來源：電工電氣發布時間：2023-07-27 14:27 瀏覽次數：520

基于VGG16圖像特征提取和SVM的電能質量擾動分類

童占北¹，鐘建偉¹，李禎維²，吳建軍²，李家俊²

(1 湖北民族大學智能科學與工程學院，湖北恩施 445000；

2 國網湖北省電力有限公司恩施供電公司，湖北恩施 445000)

摘要：針對傳統電能質量擾動分類方法需人工選取特征量，易受人為經驗干擾的問題，提出一種基于 VGG16 圖像特征提取和支持向量機 (SVM) 結合的電能質量擾動分類方法。通過格拉姆角場 (GAF) 將電能質量擾動信號映射到極坐標系中，生成格拉姆矩陣，并轉換為二維擾動圖像；利用 VGG16 網絡自動提取圖像特征的特點，將擾動圖像輸入 VGG16 網絡中進行提取；將提取的特征數據作為 SVM 分類器的輸入，并引入十折交叉驗證對SVM 進行訓練，以提升分類器的性能，最后對擾動信號進行準確分類。仿真結果表明，該方法對于電能質量擾動的分類具有較高的準確率。

關鍵詞： 電能質量；擾動分類；格拉姆角場；VGG16 網絡；支持向量機；十折交叉驗證

中圖分類號：TM712 文獻標識碼：A 文章編號：1007-3175(2023)07-0007-07

Power Quality Disturbance Classification Based on

VGG16 Image Feature Extraction and SVM

TONG Zhan-bei¹, ZHONG Jian-wei¹, LI Zhen-wei², WU Jian-jun², LI Jia-jun²

（1 College of Intelligent Systems Science and Engineering, Hubei Minzu University, Enshi 445000, China;

2 State Grid Hubei Electric Power Co., Ltd. Enshi Power Supply Company, Enshi 445000, China）

Abstract: Traditional power quality disturbance classification methods need to manually select feature quantities, which are susceptible to human experience interference. Hence, the paper proposes a power quality disturbance classification method based on the combination of VGG16 image feature extraction and Support Vector Machine (SVM). It first maps power quality disturbance signals to the polar coordinate system through Gramian Angular Field (GAF) to generate the Gramian matrix which is transformed into a two-dimensional disturbance image. Second, the characteristic of VGG16 network to automatically extract image features is used to input disturbed images into VGG16 network for extraction. Third, the extracted feature data is used as the input of SVM classifier, ten-fold cross-validation is introduced to train SVM to improve the performance of the classifier, and then disturbance signals are classified in an accurate way. The simulation results show that this method has higher accuracy of power quality disturbances classification.

Key words: power quality; disturbance classification; Gramian angular field; VGG16 network; support vector machine; ten-fold cross-validation

參考文獻

[1] WANG K, XI Y.A new method of power quality disturbance classification based on deep belief network[J].Journal of Physics Conference Series，2021，1827(1)：012021.

[2] HUANG J, QU H, LI X.Classification for hybrid power quality disturbance based on STFT and its spectral kurtosis[J].Power System Technology，2016，40(10)：3184-3191.

[3] 徐佳雄，張明，王陽，等. 基于改進 Hilbert-Huang 變換的電能質量擾動定位與分類[J]. 現代電力，2021，38(4)：362-369.

[4] 程志友，楊猛. 基于二維離散余弦 S 變換的電能質量擾動類型識別[J] . 電力系統保護與控制，2021，49(17)：85-92.

[5] 徐艷春，樊士榮，譚超，等. 基于改進 EWT-CMPE 的高滲透率主動配電網電能質量擾動檢測與分類[J]. 電網技術，2020，44(10)：3991-4000.

[6] 楊劍鋒，姜爽，石戈戈. 基于分段改進 S 變換的復合電能質量擾動識別[J] . 電力系統保護與控制，2019，47(9)：64-71.

[7] SUNDARAM P K, GIRISHKUMAR G.Power Quality Disturbance Classification Based on Kalman Filter and Adaptive Neural Fuzzy Inference System (ANFIS)[C]//International Conference on Robotics and Artificial Intelligence，2021.

[8] BHAGAT A, NIMKAR S, DONGRE K, et al.Power Quality Disturbance Detection and Classification Using Artificial Neural Network Based Wavelet[J].International Journal of Computational Intelligence Research，2017，13(8)：2043-2064.

[9] THIRUMALA K , PAL S , JAIN T , et al . A classification method for multiple power quality disturbances using EWT based adaptive filtering and multiclass SVM[J].Neurocomputing，2019，334 ：265-274.

[10] MAHELA O P, SHAIK A G, KHAN B, et al.Recognition of Complex Power Quality Disturbances Using S-Transform Based Ruled Decision Tree[J].IEEE Access，2020，8：173530-173547.

[11] DAWOOD Z, BABULAL C K.Power quality disturbance classification based on efficient adaptive Arrhenius artificial bee colony feature selection[J].International Transactions on Electrical Energy Systems，2021，31(5)：e12868.

[12] MALIK H, ALMUTAIRI A, ALOTAIBI M A.Power quality disturbance analysis using data-driven EMD-SVM hybrid approach[J].Journal of Intelligent and Fuzzy Systems，2021，42(6)：1-10.

[13] 曹夢舟，張艷. 基于卷積- 長短期記憶網絡的電能質量擾動分類[J] . 電力系統保護與控制，2020，48(2)：86-92.

[14] WANG Z, OATES T.Imaging time-series to improve classification and imputation[C]//Proceedings of the 24th International Conference on Artificial Intelligence，2015：3939-3945.

[15] SHUKLA J, PANIGRAHI B K, Ray P K.Power quality disturbances classification based on Gramian angular summation field method and convolutional neural networks[J].International Transactions on Electrical Energy Systems，2021，31(12)：e13222.

[16] SIMONYAN K , ZISSERMAN A . Very deep convolutional networks for large-scale image recognition[EB/OL].(2015-04-10)[2023-03-10].http://arxiv.org/abs/1409.1556.

[17] 邵凱旋，何怡剛，汪磊. 基于多尺度熵分析與改進 SVM 的變壓器故障識別[J] . 電子測量與儀器學報，2022，36(6)：161-168.

[18] MAMAT N, HAMZAH F M, JAAFAR O.Hybrid Support Vector Regression Model and K-Fold Cross Validation for Water Quality Index Prediction in Langat River, Malaysia[EB/OL].(2021-02-15)[2023-03-10].http://www.biorxiv.org/content/10.1101/2021.02.15.431242v1.abstract.

[19] IEEE Power & Energy Society.IEEE recommended practice for monitoring electric power quality:IEEE Std 1159-2019[S].Washington：IEEE，2019：34-79．

返回索引列表

Article retrieval

文章檢索

基于VGG16圖像特征提取和SVM的電能質量擾動分類