电力网络信息存储及导纳矩阵处理。

(1) 从输入文件中读入节点信息和支路信息，其中包括支路的始端节点编号、支路的末端节点编号、支路电阻、电抗、变比、线路对地电导等。

(2) 要求设计的程序可适合任意规模的网络

(3) 要求设计的程序可查询节点、支路信息（根据节点名或支路名）

(4) 要求将电力系统网络形成导纳矩阵及输出

(5) 要求进行导纳矩阵的稀疏处理

(6) 要求可以基于导纳矩阵的稀疏表示，获取 Yij

-Power network admittance matrix of information storage and processing. (1) read from the input file of nodes and branch information, including the beginning of a branch node number, branch of the end of the node number, slip resistance, reactance, transformation ratio, the line-to-ground conductance. (2) requires the design of the program can fit any size of network (3) requires the design of the program can query node, branch information (name or slip under the name of the node) (4) requires the formation of the power system network admittance matrix and output (5) require admittance matrix of the sparse treatment (6) requires the admittance matrix can be based on sparse representation, access Yij