A New Structure-Based Approach to Generation Control and Frequency Regulation in Response to Slow Load Variations

小行星9419353 该项目使用了一种已经构想的基于结构的建模方法，该方法不需要弱互连的假设，并且它也自然地适合于包含直接控制线路流量的设备。 本建议书简要概述了这一方法的显著特点，这些特点使目前的方法具有如此重要的普遍性，并得到了若干出版物的进一步支持。 从概念上讲，所提出的方法允许提取最低阶模型直接相关的各个级别的一个非常大规模的动态系统，多变量系统的协调理论的精神。 PI和她的团队最近开发的建模和控制概念提供了简单的方法来支持这一主要定性理论，即与复杂系统的特定级别直接相关的显式低阶模型。 利用垂直分离原理，在最低层的稳定和快速动态的假设下，在二级（子系统）和三级（互连）系统水平上提取相对低阶的离散时间模型。 这些模型和捕获的物理过程之间的直接映射在本提案中示出为适用于多公用事业环境中的频率调节的真实的发电控制问题。 该项目的主要目标是应用这种方法进一步开发下一代电力系统的负荷频率控制（LRC）/自动发电控制（AGC）的系统框架。 特别强调的是适应在美国的公用事业之间不断发展的开放式访问操作模式。 ***

9419353 Ilic This project uses an already conceived structure-based modeling approach which does not require the assumption on weak interconnections, and it also naturally lends itself to inclusion of devices which control the line flows directly. The salient features of this approach which allow for such significant generalization of the present approaches are briefly summarized in this Proposal, and are further supported by several publications. Conceptually, the proposed approach allows for extracting minimum order models directly relevant for various levels of a very large scale dynamical system, much in the spirit of the Coordination Theory for multivariable systems. The modeling and control concepts developed recently by the PI and her team offer simple ways of supporting this mainly qualitative theory in terms of explicit, low order models directly relevant for specific levels of a complex system. Using vertical separation principle under the assumption of stable and fast dynamics at the lowest level, relatively low- order-discrete-time models are extracted at both secondary (subsystem) and tertiary (interconnected) system levels. A direct mapping between these models and the physical processes captured are illustrated in this Proposal as applied to the real power generation control problem for frequency regulation in a multi-utility environment. The main objective of this project is to apply this approach towards further development of a systematic framework for next generation Load Frequency Control (LRC) / Automatic Generation Control (AGC) of the electric power systems. Particular emphasis is on accommodating the open access operating mode evolving among the utilities in the United States. ***