Robust Frequency Domain Design of Flexible AC Transmission System Devices for Power System Damping Control

这项研究的目的是研究柔性交流输电系统(FACTS)装置控制设计的新技术，以抑制多种区域间振荡模式。研究的重点是设计对负载条件和系统配置变化具有鲁棒性的阻尼器。通过将运行条件的变化建模为不确定性，将鲁棒阻尼控制器的设计转化为H00鲁棒稳定性问题。基于同步和阻尼力矩的多模式分解将被用来提供合适的设计结构来建立非保守的不确定性模型。该建议包括以下研究领域：(L)多模式分解的发展，(2)FACTS装置选址和反馈信号的选择，(3)不确定性模型的发展，(4)大系统多峰分解的计算；(5)单个FACTS装置的鲁棒控制设计；(6)多个FACTS装置的鲁棒分散控制协调。预计将开发一种严格的基于多个摆动模式的同步和阻尼力矩的鲁棒控制设计方法。这项技术将直接吸引电力系统控制设计工程师。利用作者开发的电力系统工具箱建立电力系统模型。控制设计过程将使用MatLab进行研究。设计范例将向公用事业公司和设备制造商征集。

The objective of this research is to investigate new techniques for the control design of flexible AC transmission system (FACTS) devices for the mitigation of multiple interarea modes of oscillations. The focal point of the investigation is the design of damping controllers which are robust with respect to variations in loading conditions and system configurations. By modeling the changes in operating conditions as uncertainties, the robust damping controller design will be formulated as and H00 robust stability problem. A multi-modal decomposition based on synchronizing and damping torques will be used to provide an appropriate design structure to establish non-conservative uncertainty models. The proposal consists of the following research areas: (l) development of the multi-modal decomposition, (2) FACTS device siting and feedback signal selection, (3) development of uncertainty models, (4) computation of multi-modal decomposition in large power systems, (5) robust control design of a single FACTS device, and (6) robust decentralized control coordination of multiple FACTS devices. It is anticipated that a rigorous robust control design methodology based on synchronizing and damping torques for multiple swing modes will developed. The technique will appeal directly to power system control design engineers. The power system models will set up using the Power System Toolbox developed by the proposer. The control design process will be investigated using Matlab. Design examples will be solicited from utilities and equipment manufacturers.