一类互联电力系统的鲁棒联结稳定性分析  

Robust connective stability analysis for a class of interconnected power systems

作　　者：李小华[1] 井元伟[1] 陈雪波[2] 

机构地区：[1]东北大学信息科学与工程学院,辽宁沈阳110004 [2]鞍山科技大学电子与信息工程学院,辽宁鞍山114044

出　　处：《控制与决策》2005年第3期271-274,279,共5页Control and Decision

基　　金：国家自然科学基金项目(60074002);辽宁省教育厅科研基金项目(202192057).

摘　　要：研究一类互联电力系统在不确定结构扰动下的鲁棒联结稳定问题.基于系统中互联矩阵的不确定性给出了鲁棒联结稳定的定义,利用向量Lyapunov函数方法及范数、特征值的性质推导了此类系统鲁棒联结稳定的两个充分条件.对系统在不确定结构扰动下联结稳定的鲁棒程度进行分析,得到了不确定参数的鲁棒界.两区域互联电力系统的仿真实例说明了所推导条件的有效性.The robust connective stability problem is considered for a class of large-scale interconnected power systems in the case of uncertain structural reconfigurations. Robust connective stability is defined based on uncertainty of the interconnection matrix in the systems. The sufficient conditions of connective stability are established by using the vector Lyapunov function approach and the property of norms and eigenvalues. Furthermore, the robust degree of connective stability is analyzed for the power systems, and the robustness bound of uncertainty parameters is obtained. The simulation example for a two-area interconnected power system shows the effectiveness of the given conditions.

关 键 词：互联电力系统 鲁棒联结稳定 向量Lyapunov函数 鲁棒界 

分 类 号：TP13[自动化与计算机技术—控制理论与控制工程]