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LS-SVM based capacitor anomaly identification method

  • Chunlin Lv
  • , Yuxi Deng
  • , Jinjun Liu
  • , Xiaotong Zhang
  • , Yan Zhang
  • , Fei Chang
  • Xi'an Jiaotong University
  • CAS - Institute of Automation
  • Xi'an University of Technology
  • State Grid Corporation of China

科研成果: 书/报告/会议事项章节会议稿件同行评审

摘要

The sudden failures caused by ESR abnormal increase cannot be identified by the conventional aging failure criterion. A two-dimensional data-driven based method is proposed to identify the abnormal state of capacitors. First, the least square support vector machine (LS-SVM) algorithm, a modified version of the SVM algorithm, is proposed to identify the abnormal state of capacitors. The regularization parameters and relaxation variables of the LS-SVM algorithm are established by grid search method. Then, the proposed LS-SVM algorithm and conventional k-means algorithm are applied to identify the abnormal state of capacitors based on the accelerated aging test results. The results show that the accuracy of the proposed model is significantly improved compared with k-means algorithm, increasing the identification sensitivity of the state on the failure boundary.

源语言英语
主期刊名2024 IEEE 10th International Power Electronics and Motion Control Conference, IPEMC 2024 ECCE Asia
出版商Institute of Electrical and Electronics Engineers Inc.
4542-4546
页数5
ISBN(电子版)9798350351330
DOI
出版状态已出版 - 2024
活动10th IEEE International Power Electronics and Motion Control Conference, IPEMC 2024 ECCE Asia - Chengdu, 中国
期限: 17 5月 202420 5月 2024

丛书

姓名2024 IEEE 10th International Power Electronics and Motion Control Conference, IPEMC 2024 ECCE Asia

会议

会议10th IEEE International Power Electronics and Motion Control Conference, IPEMC 2024 ECCE Asia
国家/地区中国
Chengdu
时期17/05/2420/05/24

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