In order to improve the correction accuracy of power system line overload,an automatic correction method of power system line overload considering the fault correlation area division is proposed.Through the analysis of DC power flow in power system,the identification matrix of branch power overrun is constructed,and the fault correlation area of power system is di-vided.By constructing the paired sensitivity vector of the overloaded line,this paper adjusts the power adjustment of the over-loaded line,introduce the control node,take the minimum power adjustment as the allowable adjustment,and calculate the fi-nal adjustment of the power system.this paper adjusts the power of the engine,reduce the number of generators participating in the correction,and build the objective function.By eliminating the constraint of line overload and the upper and lower limit of generator power adjustment,this paper constructs the automatic correction model of power system line overload,and realize the automatic correction of power system line overload.The experimental results show that the correction accuracy of the pro-posed method can reach more than 90％for IEEE39 bus system line overload.
关键词
故障区域/线路过载/功率调整量/自动校正/电力系统/稳定性
Key words
fault area/line overload/power adjustment amount/automatic correction/electric power system/stability
维普
万方数据