A Compression Method for Power Quality Data

Authors

  • R. E. Dapper Author
  • C. D. P. Crovato Author
  • A. A. Susin Author
  • S. Bampi Author

DOI:

https://doi.org/10.24084/repqj11.374

Keywords:

Power Quality, Power Systems, Deflate, LZ77, Huffman Coding, Signal Compression

Abstract

This paper presents a compression method for power quality (PQ) signals. This method consists of polynomial approximation algorithm and a lossless compression algorithm The proposed method uses the Deflate algorithm as lossless compression algorithm. The polynomial approximation is intended to decrease the entropy of the signal, thus increasing the compression ratio of the Deflate algorithm. The proposed method is characterized by high compression ratio and low computational cost, making feasible its implementation in embedded systems.

Author Biographies

  • R. E. Dapper

    Electrical Engineering department 
    Federal University of Rio Grande do Sul (UFRGS) 
    Av. Osvaldo Aranha, 103, Porto Alegre (Brazil) 

  • C. D. P. Crovato

    Feevale University 
    ERS239, 2755, Novo Hamburgo – CEP: 93352-000 (Brazil) 

  • A. A. Susin

    Electrical Engineering department 
    Federal University of Rio Grande do Sul (UFRGS) 
    Av. Osvaldo Aranha, 103, Porto Alegre (Brazil) 

  • S. Bampi

    Informatics Institute – Microelectronics Program (PGMicro) 
    Federal University of Rio Grande do Sul (UFRGS) 
    Campus do Vale – Av. Bento Gonçalves, 9500, Porto Alegre (Brazil) 

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Published

2024-01-24

Issue

Vol. 11 No. 4 (2013)

Section

Articles