Stability Monitoring and Control of Power Systems

将发展在高压环境下运行的电力系统电压稳定性的监测和控制技术。重点将放在使用探针信号来检测即将发生的稳定性损失，并在闭环控制中使用由此产生的警告信号来稳定系统。通过这种基于信号的方法，减少了对精确模型可用性和大量离线计算的依赖。为稳定电压不稳定附近的电力系统，将发展新的控制律。在之前的研究中，PI和他的学生对分岔控制理论做出了重要贡献，最近，他们将分岔控制与稳定性监测结合起来。在本研究项目中，这些结果将应用于应力电网即将失稳的检测和控制。与以往工作的一个主要区别是强调在实际遇到不稳定性之前进行检测，并通过信号而不是纯粹基于模型的技术来实现这一点。此外，预计由电力系统应用所激发的分析问题也将自然产生对理论的新贡献。

Techniques for the monitoring and control of voltage stability in electric power systems operating in a stressed environment will be developed. Emphasis will be placed on the use of probe signals to detect impending loss of stability and using the resultin warning signals in closed-loop control for system stabilization. Through such a signal-based approach, reliance on availability of accurate models and on extensive off-line computations is reduced. New control laws for stabilizing power systems near voltage instability will be developed. In previous research, the PI and his students have made important contributions to the theory of bifurcation control and, more recently, have coupled this with stability monitoring. In this proposal research project, these results will be applied to detection and control of impending instability in stressed electric power networks. One major departure from previous work is the emphasis on detection of instabilities before they are actually encountered, and achieving this with a signal- rather than purely model-based technique. Additionally, it is expected that new contributions to the theory will also naturally result from analytical problems motivated by the power system application.