An algorithm for the three-pole controlled auto-reclosing of shunt compensated transmission lines with an optimization for the second and third pole

摘要

This article presents an algorithm for auto-reclosing of shunt compensated transmission lines. The algorithm uses signal analysis methods to estimate the future voltage shape over the circuit-breaker. Based on this voltage shape switching instants are estimated in the zero crossings. The minimization of the probability of a prearcing is reduced be adding time shift parameters. These parameters take the limited rise of strength recovery of the circuit breaker and the mutual influence of the coupling of the poles by a three-pole auto-reclosing into consideration. The advantage of the descript method is significant reduction of the switching overvoltage.