Abstract:For the situation of the traditional operational curve method to calculate theinstantaneous short circuit current effective value is not accurate enough, a practical computerizedmethod making use of node admittance matrix based on the International Electrotechnical CommissionStandards and circuit theory is proposed to calculate the instantaneous short circuit current with highaccuracy and little user effort. A combination of two kinds of node voltage equation are used tosimplified calculation and can automatically calculate the periodic components of varying short circuitcurrent at anytime, and the aperiodic components of the symmetric short circuit current. The validity ofthe method with the example of Iran RUDBAR hydropower station is proved.
李昱, 孙春顺, 杨雨薇, 李杏, 葛宇轩. 节点电压方程的任意时刻短路电流实用计算研究[J]. 电气技术, 2013, 14(04): 6-10.
Li Yu, Sun Chunshun, Yang Yuwei, Li Xing, Ge Yuxuan. Computation for Instantaneous Short Circuit Current Based on IEC Standards and Node Voltage Equation. Electrical Engineering, 2013, 14(04): 6-10.