基于空间分解及变换技术的高维随机时滞电力系统稳定性研究

项目名称： 基于空间分解及变换技术的高维随机时滞电力系统稳定性研究

项目编号： No.51277128

项目类型： 面上项目

立项/批准年度： 2013

项目学科： 电工技术

项目作者： 贾宏杰

作者单位： 天津大学

项目金额： 75万元

中文摘要： 时滞是造成动力系统性能恶化和导致其失稳的一种重要诱因。随着电力系统的不断发展和智能电网的快速建设，时滞会在电力系统中大量涌现，对系统安全稳定运行的影响将越来越深远。现有时滞稳定分析方法，难以满足大规模复杂随机时滞电力系统稳定性分析的需要，本项目希望通过深入研究来破解这一难题，主要研究包括：采用空间分解技术，构建适用于大规模电力系统时滞稳定性分析所需的带约束时滞微分方程(C-TODE)和带约束时滞微分-代数方程(C-TDAE)模型；进一步，采用空间变换等技术，研究适用于高维C-TODE和C-TDAE模型的确定型时滞稳定性分析理论、时滞鲁棒稳定分析理论和协调控制理论，以期形成适用于大规模时滞电力系统稳定性分析的完整理论框架；最后将理论研究成果转化为实用算法和计算程序，在模拟环境或实际大电网中加以应用。研究成果将为未来大规模电力系统在考虑时滞影响下的在线安全分析和协调控制提供理论基础和技术保障。

中文关键词： 电力系统稳定；时滞稳定性；非线性；动力系统；协调控制

英文摘要： It is well known that time delays are usually the sources of deterioration, oscillation and instability of dynamic systems. In power systems, more and more time delays will appear with the rapid development of smart grid and system interconnection. However, the existed approaches can not be applied to the stability analysis of bulk power system with complex time delays and uncertainties. In order to overcome this problem, we will carry on deeply studies in this project. Main works are as following: 1) Based on space decomposition technique, two models named C-TODE (constraint time-delay ordinary differential equation) and C-TDAE (constraint time-delay algebraic differential equation) will be presented so as to properly describe the complex dynamics of bulk power systems with considering the time delays and uncertainties; 2) Based on space transformation technique, determinant stability analysis theory, robust stability analysis theory and coordination control theory suitable for C-TODE model and C-TDAE model will be deeply studied and will be given in the project. And, a stability analysis frame for high dimension delayed system based on the above two models will be built; 3) At last, all theoretical results will be developed into algorithm libraries or software packages. And they will be validated and applied

英文关键词： Power System Stability；Time-delayed Stability；Nonlinearity；Dynamic Systems；Coordination Control