Transformer area line impedance calculation method, device, equipment and medium

• Main Authors: CHEN GUANDAN, ZHOU QINXING, LU YUXIN, LIN ZHIJIAN, LIN FENG, XIAO KAIWEI, CHEN NAN
• Format: Patent
• Language: Chinese; English
• Published: 23.09.2022
• Subjects: MEASURING; MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES; PHYSICS; TESTING

The invention discloses a transformer area line impedance calculation method, device, equipment and medium based on line and user load data, and the method comprises the steps: firstly, respectively sampling and obtaining the electric parameters of N quasi-synchronization time scales of the head end of each feeder line, a feeder line bifurcation point and a user node of a transformer area; the electrical parameters at least comprise a voltage value, a current value, an active power value and a reactive power value; then, according to the electrical parameters of the N quasi-synchronization time scales, impedance parameters of the T-shaped lines are obtained through calculation based on an impedance calculation model of the T-shaped lines, each transformer area comprises a plurality of T-shaped lines, and each T-shaped line comprises three adjacent feeder line bifurcation points and a user node; and the user node is connected with the middle feed line bifurcation point in the three feed line bifurcation points