Data processing technology in power quality monitoring system in distribution system

Currently there are various data processing methods in power quality monitoring system, and this paper put forward a new data processing method based on data preprocessing, reason able choice of time interval for analysis and generating daily statistical file. According to IEC international standard, it is effective to get clear and explicit graphs and quickly generate different statistical reports in control center by adopting the effective measuring time in collecting apparatus and reading the data file of monitoring spot in accordance with appointed format in monitoring system. With this method of data processing, the whole monitoring system of power quality can be effectively applied to practical power system.