Voltage Instabilities in Large-Scale Power Systems

在该提案中，与以下情况相关联的“电压崩溃”的概念 大规模电力系统动力学进行了探讨。 虽然 在过去的几年里， 静态电压不稳定问题，动态问题现在才 开始出现在分析中。 这里的前提是， 静态指标很重要，只有通过了解 有效的防塌控制措施的动力学可以 推导 这项建议包含三个主要想法。 首先，任何对 电压动态需要相关的负载模型。 准确的第一次 原则动态负载模型是困难的，如果不是不可能的， achieve. 基于动态负荷数据训练的神经网络模型 替代不可能完成的写入负载差异的任务 提出了方程。 第二个想法是修改最小值 奇异值静态性能指标，包括动态现象。 第三个想法是扩展一个中心流形动态电压崩溃 模型推广到一般慢时变多参数系统。

In this proposal the notion of "voltage collapse" associated with large-scale electric power system dynamics is explored. While there has been significant research done during the past few years on the static voltage instability problem, the dynamic problem is only now beginning to emerge in analysis. The premise here is that while static indicators are important it is only through an understanding of the dynamics that effective control measures against collapse can be derived. This proposal contains three main ideas. First, any understanding of voltage dynamics requires a relevant load model. An accurate first principle dynamic load model is difficult if not impossible to achieve. A neural network based model trained on dynamic load data as a substitute for the impossible task of writing the load differential equations is proposed. The second idea is to modify the minimum singular value static performance index to include dynamic phenomena. The third idea is to extend a center manifold dynamic voltage collapse model to general slowly time-varying multi-parameter systems.