多机电力系统发电机的同步稳定特性分析  

Synchronization Stability Characteristic Analysis for Multi-machine Power System

作　　者：万秋兰[1] 单渊达[1] 

机构地区：[1]东南大学电气工程系,江苏省南京市210096

出　　处：《电力系统自动化》2005年第12期15-18,48,共5页Automation of Electric Power Systems

摘　　要：为进一步认识发电机同步稳定性特性,基于动态过程的轨迹,分析了多机电力系统的发电机稳定性物理特性及不稳定平衡点特性。用基于全系统状态空间轨迹的动态单一奇点(DIS)研究了系统中各台发电机的详细动态过程,并揭示了基于轨迹的动态单一鞍点(DISP)是发电机失稳时所具有的特性。某6机22节点简化实际系统的算例证实了该研究方法的有效性。The characteristics of physical stability and unstable equilibrium point are analyzed based on the trajectory of dynamic process to further realize the synchronization stability features in multi-machine power system. The detailed dynamic process and unstable property of each generator are studied by the dynamic individual singularity (DIS) based on trajectory of whole state space. It is revealed that unstable machine possesses the feature of dynamic individual saddle point (DISP) based on the trajectory. Simulation of a real 6-generator 22-bus power system demonstrates the validity of the proposed method.

关 键 词：不稳定平衡点 动态鞍点 动态单一鞍点 

分 类 号：TM712[电气工程—电力系统及自动化]