电力系统保护与控制Issue(24):16-22,7.
基于LMI的时滞电力系统双层广域阻尼控制
Two layer inter-area damping control of power systems considering time-delay based on LMI
摘要
Abstract
A new system modeling method with respect to time delayed power systems is proposed, and then a two-layer controller of wide-area inter-area supplementary damping control is designed to overcome the negative effects on closed loop power system stability induced by time-delay of measured wide-area signals. The time delay system control theory can be directly applied through the modeling method. In the first layer, the time delay output feedback control is applied to power system without time delay to form the time delayed closed-loop system. In the second layer, the feedback control aiming at the time delayed system model is carried out. The state feedback matrix and observer gain matrix are solved by the LMI method based on the control theory of time delay system. The simulation of 10-machine 39-bus New England test system proves the damping controller based on the two-layer control strategy is insensitive to time delay to some extent with strong robustness and has better effect on suppressing the inner-area oscillation. The method proposed builds a platform and provides feasibility to apply the control theory of time delayed system directly in the design of damping control in power system.关键词
时滞电力系统模型/线性矩阵不等式/双层控制/阻尼控制/广域测量Key words
time delay power system model/linear matrix inequality (LMI)/two layer control/damping control/wide-area measurement分类
信息技术与安全科学引用本文复制引用
罗珂,吕红丽,霍春岭,冯俊娥..基于LMI的时滞电力系统双层广域阻尼控制[J].电力系统保护与控制,2013,(24):16-22,7.基金项目
国家自然科学基金面上资助项目(61374187,60974137);国家自然科学基金青年基金资助项目 ()
This work is supported by National Natural Science Foundation of China (No.60974137 and No.61004005) and Science Fund for Distinguished Young Scholars of Shandong Province (No. JQ201219) (No.60974137 and No.61004005)