电力系统保护与控制2016，Vol.44Issue(9)：7-14,8.DOI:10.7667/PSPC151647
基于LMI的广域时延多机电力系统的控制与稳定性研究
Study on control and stabilization for multi-machine power system with wide-area time-delay by LMI
关琳燕 1周洪 1胡文山1
作者信息
- 1. 武汉大学动力与机械学院，湖北 武汉 430072
- 折叠
摘要
Abstract
Time-delay brought by wide-area communication is one of the most important causes leading to the performance degradation and even the failure of the controllers. The motionequation of the generator rotors of the multi-machine power system is linearized and deviated in the paper, in consideration of the characteristics of the time-delay power system. Then, defining a proper Lyapunov function, stabilization criteria based on the linear matrix inequality theory are presented by introducing some weight-free matrices. And the controller with full state feedback is designed. Compared to the linear quadratic optimal control,the controller is less conservative and more effective.The validity of the controller is verified by the IEEE 3-machine 9-bus test system. The simulation results show that the controller can reduce the negative impact caused by the time-delays.关键词
广域测量系统/全状态反馈/时延/线性矩阵不等式/稳定性Key words
wide-area measurement system/full status feedback/time-delay/linear matrix inequality/stability引用本文复制引用
关琳燕,周洪,胡文山..基于LMI的广域时延多机电力系统的控制与稳定性研究[J].电力系统保护与控制,2016,44(9):7-14,8.
