Title
High-Precision Identification of Power Quality Disturbances Under Strong Noise Environment Based on FastICA and Random Forest
Abstract
The continuous integration of fluctuating distributed generators and nonlinear power electronic equipment have produced severe signal contamination and induced various power quality (PQ) problems to modern power systems. PQ disturbances (PQD) greatly ruin user experience and also bring significant power losses. Therefore, a high-precision machine learning-based PQD identification model is proposed in this article, which combines the advantages of the modified fast independent component analysis method and the improved random forest classifier. First, ten types of PQD models are established, and fast independent component analysis is adopted to denoise the PQD sample signals mixed with Gaussian noises. Second, the discrete wavelet transform is utilized to extract the statistical and wavelet-related features from the denoised PQD samples, so as to form the desired feature set. Finally, a random forest-based PQD identification model is proposed. Compared with several existing models, the proposed model has higher identification accuracy and stronger feasibility under strong noise environment, which could provide valuable information for future PQ management.
Year
DOI
Venue
2021
10.1109/TII.2020.2966223
IEEE Transactions on Industrial Informatics
Keywords
DocType
Volume
Fast independent component analysis (FastICA),power quality (PQ) disturbance (PQD),random forest (RF),strong noise
Journal
17
Issue
ISSN
Citations 
1
1551-3203
0
PageRank 
References 
Authors
0.34
0
4
Name
Order
Citations
PageRank
Jun Liu1104.54
Hang Song200.34
Huiwen Sun300.34
Hongyan Zhao495.03