说明：  电力系统的潮流计算,以下程序参考文献 《电力系统毕业设计》中国水利电力出版社 (该文献用极坐标下的牛顿——拉夫逊方法实现，在此为了与课本一致做了修改) 为了计算方便将原来的下标做以下修改: S2 S3 S4 S5 U2 U3 U4 U5 改为S1 S2 S3 S4 U1 U2 U3 U4 ,即原题的平衡点1就变为现在的平衡点5
(Power system load flow calculation, the following procedures References " Graduation power system design" China Water Conservancy and Electric Power Press (in the literature with the polar coordinates of the Newton- Raphson method of implementation, in this order was revised in line with the textbook) in order to to facilitate the calculation of the original subscript make the following changes: S2 S3 S4 S5 U2 U3 U4 U5 replaced by S1 S2 S3 S4 U1 U2 U3 U4, namely, the original title of the equilibrium point becomes a point of balance is now 5)