A Compression Method for Power Quality Data
Roque Eduardo Dapper, César David Paredes Crovato, Altamiro Susin, Sérgio Bampi · Renewable Energy and Power Quality Journal · 2017
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.