Journal of East China Normal University(Natural Sc ›› 2019, Vol. 2019 ›› Issue (5): 123-132.doi: 10.3969/j.issn.1000-5641.2019.05.010

• Computational Intelligence in Emergent Applications • Previous Articles     Next Articles

Electric energy abnormal data detection based on Isolation Forests

HUANG Fu-xing1,2, ZHOU Guang-shan1,2, DING Hong1,2, ZHANG Luo-ping1,2, QIAN Shu-yun3, YUAN Pei-sen3   

  1. 1. NARI Group Corporation(State Grid Electric Power Research Institute), Nanjing 211106, China;
    2. NARI Technology Co., Ltd, Nanjing 211106, China;
    3. College of Information Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
  • Received:2019-07-29 Online:2019-09-25 Published:2019-10-11

Abstract: With the development of power information systems, users' requirements for the quality of power data has gradually increased. Hence, it is important to ensure the accuracy, reliability, and integrity of massive power data. In this paper, an anomaly detection algorithm based on Isolation Forests is used to realize anomaly detection of large-scale electric energy data. Isolation Forest algorithms generate random binary trees and isolated forest models by dividing training samples and detecting abnormal data points. The algorithm can not only process massive data quickly, but it also offers accurate results and a high degree of reliability. In this paper, the positive active total power (PAP) and reverse active total power (RAP) fields of large-scale electric energy data are determined. The experimental results show that the algorithm has high detection efficiency and accuracy.

Key words: Isolation Forest, anomaly detection, electric energy data

CLC Number: