基于VST的电压稳定分岔分析  

A VST-Based Analysis for Voltage Bifurcation Stability

作　　者：韦延方[1] 卫志农[1] 孙国强[1] 周鹏程[1] 叶芳[1] 

机构地区：[1]河海大学能源与电气学院,江苏省南京市210098

出　　处：《电网技术》2011年第7期81-86,共6页Power System Technology

基　　金：国家自然科学基金项目(50877024)~~

摘　　要：介绍了一种新颖的基于Matlab的电压稳定分岔分析工具包—电压稳定工具包(voltage stability toolbox,VST)。详述了该工具包用户友好图形接口界面和源代码开放的特点。基于数值和符号计算,该工具包采用Newton-Raphson和Newton-Raphson-Seydel的组合算法,旨在研究电力系统中的电压稳定和分岔问题,其主要功能包括潮流计算、分岔分析、奇异性和特征根分析、动态时域仿真等。VST非常有助于理解电力系统的电压稳定和非线性分岔现象,使用该工具对一个3机5节点系统和IEEE 30节点系统进行仿真,结果验证了该工具包用于电压稳定分析的实用性和有效性。A novel Matlab-based bifurcation analysis toolbox for voltage stability, named voltage stability analysis toolbox （VST）, is presented. The features of its friendly graphic interface and open source are described in detail. Based on numerical and symbolic computation, a combinational algorithm integrating Newton-Raphson method and Newton-Raphson-Seydel method is adopted to research the bifurcation and voltage stability problems. Main functions of VST include power flow calculation, bifurcation analysis, singularity and eigenroot analysis, dynamic time-domain simulation and so on. VST contributes to understand power system voltage stability and nonlinear bifurcation phenomena. Simulation results of a 3-machine 5-bus system and IEEE 30-bus system verify the practicability and effectiveness of the presented toolbox in voltage stability analysis.

关 键 词：MATLAB 电压稳定分析工具包 牛顿-拉夫逊法 牛顿-拉夫逊-塞德尔法 分岔分析 

分 类 号：TM734[电气工程—电力系统及自动化]