The Main Causes of Voltage Collapse in Electric Power Systems

电压崩溃是一种失稳现象， 大型电力系统， 当电压降低时会导致停电 灾难性的 电压差 涉及各种子系统的崩溃 （发电机、变压器、负载未知）。 研究的主要目的是 确定哪些子系统和参数 主要负责电压崩溃， 一个简单的电力系统模型， 电压崩溃的主要原因可能是 开发 这种模式将构成基础 为了科学的理解， 防止电压崩溃。 电压崩溃通常与 非线性电力系统分岔 方程;也就是说， 参数变化的稳定平衡， 电力系统正常运行。 拟议研究的目标是 确定子系统和参数 有助于分叉（因此， 电压崩溃），通过研究 分叉和减少的条件 分叉为更简单的形式。 其他 参数化非线性系统失稳 以类似的方式， 开发将普遍适用。

Voltage collapse ia a loss of stability in large scale electric power systems which causes blackout when voltages decrease catastrophically. Explanations of voltage collapse involving various subsystems (generators, transformers, loads is unknown). The main purpose of the research is to determine which subsystems and parameters are primarily responsible for voltage collapse so that a simple power system model capturing the main causes of voltage collapse may be developed. Such a model would form the basis for the scientific understanding and prevention of voltage collapse. Voltage collapse is generally associated with bifurcation of the nonlinear power system equations; that is, the disappearance as parameters vary of the stable equilibrium at which the power system is normally operated. The goal of the proposed research is to determine how the subsystems and parameters contribute to the bifurcation (and hence the voltage collapse) by studying the geometry of the bifurcation and reducing the condition for bifurcation to a simpler form. Other parameterised nonlinear systems lose stability in a similar way and most of the techniques developed will apply generally.