Quickly finding the voltage value of each node is the basis for judging the voltage exceedance degree when the power system is opened and broken. In this paper, a fast calculation method of line opening voltage based on breaking function is proposed. Firstly, a reference variable is introduced on the admittance of the broken line, and a nonlinear opening function about the reference variable is constructed, so that the voltage are functions about the correlative reference variables after the line is opened. Then, by using the Taylor series expa...
