Fixed Low-Order Wide-Area Damping Controller Considering Time Delays and Power System Operation Uncertainties

被引：88

作者：

Bento, Murilo E. C. ^{[1
]}

机构：

[1] Univ Sao Paulo, Dept Elect Engn, BR-13566590 Sao Carlos, SP, Brazil

来源：

IEEE TRANSACTIONS ON POWER SYSTEMS | 2020年 / 35卷 / 05期

关键词：

Delay effects; Power system stability; Damping; Uncertainty; Communication channels; Phasor measurement units; Wide-area damping controller; communication permanent failure; cyber-security; riccati equation; small-signal stability; DESIGN; ROBUST; OSCILLATION; STABILITY;

D O I：

10.1109/TPWRS.2020.2978426

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This paper presents a procedure for the design of a Wide-Area Damping Controller (WADC) towards improving the low-frequency oscillation modes of the power system considering uncertainties in both nominal power system operation condition and time delay on the WADC communication channels. A set of possible operating conditions is linearized around their equilibrium points and used for the construction of the uncertainty model of the system. The lower and upper limits of the time delay are also included in the set. The WADC operation requires remote signals provided by Phasor Measurement Units and highly susceptible to failures or cyber-attacks that may compromise the controller performance. The proposed procedure evaluates in each stage if the resulting controller presents robustness to communication channel permanent failure. Modal analysis and time-domain nonlinear simulations were conducted in the IEEE 68-bus power system.

引用

页码：3918 / 3926

页数：9

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