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| 摘要: |
| 在建立统一潮流控制器UPFC(Unified Power Flow Controller)动态模型的基础上，利用分歧理论，揭示了含UPFC电力系统中的非线性奇异现象，并给出了分析这种系统位于非双曲平衡点邻域内稳定性的方法和步骤。计及分歧时的稳定与Lyapunov稳定有本质区别，后者是对一个给定系统改变初始条件研究系统的稳定性；而计及分歧时，系统的拓扑结构已发生变化，反映是系统状态的一种跳跃或突变，从而为含UPFC系统的安全稳定运行提供了一些新观点和新见解。 |
| 关键词: 统一潮流控制器 静稳极限 电力系统 分歧 |
| DOI： |
| 分类号:TM712 |
| 基金项目: |
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| Study on bifurcation in power systems with UPFC |
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DENG Ji - xiang WANG Ye
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| Abstract: |
| Nonlinear singularity phenomenon in power system with UPFC(Unified Power Flow Controller)is researched using bifurcation theory.A method and its implementation steps are presen - ted to analyze the stability of the system with UPFC running near non - hyperbola equilibrium point.There is a constitutional difference between the stability considered bifurcation and the Lyapunov stability,the stability state of latter is studied through changing the initial condition on a known system.When bifurcation is considered,the topology structure of a system is changed,which reflects a springing transformation or a catastrophe of the state variables.Thus some new viewpoints are obtained for the safe and stable operation of the system with UPFC. |
| Key words: UPFC,steady state stability limit,power systems,bifurcation |
