An intelligent measuring device and its function realization method for deepening application in substation

Abstract

This thesis focuses on the intelligent measuring device for further application of power supply district, which realizes an analysis method of meter measurement error in the electricity meter box and an efficient electrical topology identification scheme in power supply district. Through the meter search, reading and measurement functions of the switches, the corresponding relationship between the total meter and the sub meter in the meter box is realized, and a matrix equation related to the measurement value and the abnormal coefficient is established. The analysis of meter inaccuracy or power theft behavior is supported by solving the abnormal coefficient of each sub meter. In view of the efficiency of electrical topology identification, a voltage distortion and characteristic current identification scheme is proposed to realize the rapid identification of sub nodes in the substation area without the archives of the terminal.