Applications of matrix perturbation theory to delayed cyber-physical power system

作     者：Mou, Qianying Ye, Hua Liu, Yutian Gao, Lei 

作者机构：Shandong Univ Key Lab Power Syst Intelligent Dispatch & Control Minist Educ 17923 Jingshi Rd Jinan 250061 Shandong Peoples R China China Elect Power Res Inst 15 Xiaoying East Rd Beijing 100192 Peoples R China 

出 版 物：《INTERNATIONAL JOURNAL OF ELECTRICAL POWER & ENERGY SYSTEMS》 (国际电力与能源系统杂志)

年 卷 期：2019年第107卷

页      面：507-515页

核心收录：

学科分类：0808[工学-电气工程] 08[工学] 

基　　金：Natural Science Foundation of China [51107073, 51677107] Young Scholar Program of Shandong University (YSPSDU) [2016WLJH06] 

主　　题：Cyber-physical system Eigen-analysis Eigenvalue tracking Matrix perturbation Spectral discretization Time delay Wide-area damping control Wide-area measurement system 

摘      要：In this paper, the matrix perturbation theory is introduced to delayed cyber-physical power system (DCPPS) for analyzing the variations of eigenvalues and eigenvectors when small changes are imposed on system parameters and time delays. On one hand, a perturbation-based eigenvalue tracking method is presented to reliably track the targeted interarea oscillation modes so that wide-area damping controllers (WADCs) can be optimally designed to damp them. On the other hand, key factors affecting the accuracy of the solution operator discretization (SOD)-based eigenvalue computation methods for DCPPS are identified by matrix perturbation analysis, which provide a guidance for selecting suitable parameters to precondition the DCPPS. The study results on the 16-generator 68-bus test system validate the effectiveness of the two applications of matrix perturbation theory.