Power Quality Analysis Based on Time Series Similarity and Extreme Learning Machine

  • Meimei LiEmail author
  • Shouqing Jia
  • Shuqing Zhang
  • Zheng Gong
  • Guaifu Li
Conference paper
Part of the Communications in Computer and Information Science book series (CCIS, volume 857)


Aiming at the problem of the existing fault monitoring method such as intensive computation, dependence on the length of data, and difficult of finding out the abnormal situation, a fast and effective method of recognizing power quality fault is proposed in this paper. Confidence intervals are first partitioned by a pre-judgment method based on time series similarity, and the failure characterization is simplified by measuring similarity between the recorded data and normal data template. Then, S-transform analysis and extreme learning machine were combined to identify the fault type. This method could reduce the amount of calculation and number of fault parameters effectively, finding out the monitored fault immediately. The results of simulation show that the method could realize the fault pre-judgment and analysis effectively with the feature of fast and accurate. Experiment analysis to ChengDe Steel Mills proved the feasibility and the superiority of this method.


Metrology Analysis of power quality Similarity measure S-transform Extreme learning machine 


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Copyright information

© Springer Nature Singapore Pte Ltd. 2018

Authors and Affiliations

  • Meimei Li
    • 1
    • 2
    Email author
  • Shouqing Jia
    • 1
  • Shuqing Zhang
    • 2
  • Zheng Gong
    • 2
  • Guaifu Li
    • 1
  1. 1.Northeastern UniversityQinhuangdaoChina
  2. 2.Yanshan UniversityQinhuangdaoChina

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