Presidential Young Investigator Award: Nonlinear Security and Control Techniques for Power Systems

本文对大规模电力系统动态安全评估的若干问题进行了研究。重点研究了电压不稳定问题，并针对这一问题提出了一种概率安全措施。随之而来的是对涉及无功潮流和电压效应的模型中均衡吸引区域的性质的调查。初步研究表明，在包含电压动态的模型中，吸引区和不稳定平衡点是完全不同的。在这项工作中特别感兴趣的将是将任何技术扩展到包含可控高压直流链路的系统。

This work involves investigation into several problems of dynamic security assessment for large-scale electric power systems. The emphasis is on the problem of voltage instabilities and proposes to develop a probabilistic security measure for this problem. Along with this is an investigation into the nature of the regions of attraction of equilibria in models that involve reactive power flow and voltage effects. Initial investigations have shown that the regions of attraction and unstable equilibria points are radically different in models that include voltage dynamics. Of particular interest in this work will be extensions of any techniques developed to systems that incorporate controllable high voltage dc links.