Abstract
Based on the study of FPGA architecture and DSP power quality, the data acquisition system, analysis system works, summarize functional modules of the power quality in the data collection process noise were introduced. Its classification all kinds of noise modelling and simulation, after consideration of the noise source and data compression, the influence of various noises obtained data compression. The corresponding noise suppression measures, data processing of the data will be compression impact. The paper has also carried out some related research. These studies help to optimize all aspects of electric power data acquisition systems, which improved power lossless data compression ratio. Data processing for different noise, a mathematical model of each noise separately the effects of the law in the case of different data processing methods. Noise at each major electric power alone was lossless data compression. Pure power signal compression ratio is very high, due to the introduction of noise makes lossless compression effect decreased significantly.