电力系统导论实验报告 (2).doc

实验报告
实验课程: 电力系统导论(双语)
学生姓名:
学号:
专业班级: 电力系统及其自动化 111 班

Content
1、Bus Admittance Matrix
2、Bus Impedance Matrix
3、Newton-Raphsion Power Flow
Bus Admittance Matrix
1. Objective
• To write a simple program in MATLAB® for the algorithm of bus admittance matrix.
2. System Requirement
Computer with MATLAB® 6 or above installed.
3. Procedure
Launch the MATLAB program.

Go to FILE NEW M-file.

Write a function Y = The_Node_Admittance_Matrix(TopoStructureAndBranchPara) for the formation of the bus admittance matrix.
TopoStructureAndBranchPara is the transmission line, cable and transformer input data and contains five columns parameters. The first two columns are the line bus numbers and the remaining columns contain the line resistance and reactance in per-unit and transformer tap ratio or capacitor of transmission line.
The function should return the bus admittance matrix.
4. Exercises
Use the written function, Y = The_Node_Admittance_Matrix (TopoStructureAndBranchPara) to obtain the Ybus of the following power work:
Q1. You are required to write the Ybus topological structure and parameter into a text file. (Hint: use the matlab piler to write down the table 1 data, using ma to separate the parameters, and save it use the name of )
Q2. You are required to write out the program flow figure of forming a nodal admittance matrix.
Hint. You are required pile a program to form the Ybus Matrix, the following program is a reference program to you.

Figure : One-line diagram of power system
For example ,from the textbook “power system analysis” edition 3 on page 61~62
Table 1:Transformer and transmissssion Line data
From Bus#
To Bus#
R()
X()
B()or ratio K
Others
1
2



1
3
0


1
4



2
4



 NodalAdmittanceMatrix =  
    -    - +         0 +    - +