计算电力系统电压分叉点的新方法  

A New Method for Computing the Voltage Bifurcation Point of Power System

作　　者：井雨刚[1] 李英秋[2] 

机构地区：[1]山东电力研究院,山东济南250002 [2]山东达驰电气有限公司,山东济南250002

出　　处：《山东电力技术》2010年第4期1-4,14,共5页Shandong Electric Power

摘　　要：基于电力系统动态模型,应用分叉理论提出了一种求解鞍结分叉、hopf分叉点的新方法。该方法的基本原理是,当动态系统参数缓慢变化时,在其平衡点的延拓过程中,首先检测该平衡点流形的局部领域内系统的拓扑性质的改变,确定系统动态稳定性性态,然后应用插值法来确定更高精度要求的参数分叉值,典型电压稳定模型的计算结果表明了此方法的有效性和实用性。Based on power system dynamic model,an effective method is proposed to solve the saddle-node bifurcation or hopf bifurcation point in this paper.The principle of this method is when the parameter of dynamic system varies slowly,its balance point is extended correspondingly.During this process,the dynamic voltage stability is determined by inspecting the alternation of the system topology character in the local range of balance point,and then the interpolation method is applied to further determine the value of parameter when bifurcation occurs.Numerical results of typical voltage stability model have shown that this method is effective and practical.

关 键 词：鞍结分叉 HOPF分叉 仿连续法 动态电压稳定 

分 类 号：TM712[电气工程—电力系统及自动化]