Stochastic Transient Stability Analysis for Structure Preserved Electric Power Systems

电力系统负荷是无数电力需求的函数，这些电力需求取决于各种因素，包括时间、天气、地理和经济。成千上万个独立切换的单个设备的集合行为的结果是电力系统负载本质上是随机的。最近的研究结果表明，电力系统的稳定性（或不稳定性）的确定可能会受到不利影响的随机行为的负载模式。不幸的是，调查这些影响是阻碍了缺乏适当的算法来分析大规模随机电力系统。因此，在本项目中，我们将开发适当的工具来分析随机电力系统的动态行为。智力优势：由于可再生能源和插入式电动汽车的出现，负荷和间歇性发电源的随机性水平增加，这一领域非常及时和相关。为了提高电力系统的可靠性、准确性和安全性，必须更好地理解系统的不确定性负荷模型的内在风险。该项目将解决影响电力系统暂态稳定性的随机因素，并提供定量和定性的安全评估和建立安全裕度的方法。更广泛的影响：该项目将提供一个机会，教育电力系统中的多样化工程人员。该项目将资助一名女博士。学生PI和她的研究生将进入一个密切的指导关系，将包括一对一的指令不仅在电力工程，而且道德研究实践，沟通技巧和国际意识。研究生还将在课堂教学和学术生涯准备方面接受指导。此外，数值方法的发展将被纳入PI编写的计算方法教科书的下一版。

Electrical power system loads are functions of a myriad of power demands that depend on a variety of factors including time, weather, geography, and economics. The result of the aggregate behavior of many thousands of individual devices switching independently is power system loads that are stochastic in nature. Recent results have indicated that the determination of the stability (or instability) of the electric power system may be adversely affected by the random behavior of the loading patterns. Unfortunately, investigating these effects is hindered by the lack of appropriate algorithms with which to analyze large scale stochastic power systems. Therefore, in this project we will develop the appropriate tools to analyze the dynamic behavior of stochastic power systems.Intellectual Merit: This area is extremely timely and pertinent as the level of stochasticity in the loads and intermittent generation sources increase due to renewable energy resources and plug-in electric vehicles. It is important to better understand the inherent risks associated with nondeterministic load models of the system to improve the reliability, resiliancy, and security of the electric power system. This project will address the stochastic factors that impact the transient stability of the electric power system and provide quantitative and qualitative approaches to security assessment and establishing security margins.Broader Impacts: The project will provide an opportunity for educating a diverse engineering workforce in electric power systems. This project will support one women Ph.D. students. The PI and her graduate student will enter into a close mentoring relationship that will include one-on-one instruction not only in power engineering, but also ethical research practices, communication skills, and international awareness. The graduate students will also receive mentorship in classroom instruction and academic career preparation. Furthermore, the numerical methods developments will be incorporated into the next edition of the textbook authored by the PI on computational methods.