Capacitor Voltage Transformer Transient Process To Protect The Influence And Algorithm Research

Since the capacitor voltage transformer(CVT) has been used more and more widely in electric power system,it is very improtant to study the transition of CVT,analyze the effects of CVT on protection,and bring forward the solution.Using Matiab symbolic computation,this paper studies the sensibilities of CVT's parameters,characteristic of CVT's transient noise,deduces the formula of CVT's secondary voltage and the formula after fourier transform;then bring forward the least square algorithm for CVT and the compensatory algorithm based on fourier transform.