Delay-Dependent Stability for Load Frequency Control System via Linear Operator Inequality

2020 ◽  
pp. 1-9
Author(s):  
Changchun Hua ◽  
Yibo Wang
Keyword(s):  
Control System ◽  
Linear Operator ◽  
Frequency Control ◽  
Load Frequency Control ◽  
Operator Inequality ◽  
Load Frequency ◽  
Frequency Control System ◽  
Delay Dependent ◽  
Delay Dependent Stability

Delay-Dependent Stability Analysis of Network-Based Load Frequency Control of One and Two Area Power System with Time-Varying Delays

2019 ◽  
Vol 18 (03) ◽  
pp. 1950007 ◽  
Author(s):  
S. Manikandan ◽  
Priyanka Kokil
Keyword(s):  
Time Delay ◽  
Stability Criterion ◽  
Frequency Control ◽  
Load Frequency Control ◽  
Time Varying ◽  
Control Center ◽  
Load Frequency ◽  
Plant Site ◽  
Delay Dependent ◽  
Delay Dependent Stability

Network-based load frequency control (LFC) requires data transmission from the plant site to the control center and control center to the plant site. Communication delays resulting from an open communication network impart time-varying nature to network delay. This time-varying delay may debase the dynamic performance or instability of the LFC systems. Stability of the LFC system is investigated by Lyapunov–Krasovskii functional (LKF) analysis and linear matrix inequalities (LMIs) techniques. In this paper, a less conservative delay-dependent stability criterion is derived for the time-delay system by proper constructing of LKF and imposing tighter bounding of integral terms on time-derivative of LKF. Delay margin is obtained by solving proposed stability criterion for a time-delay LFC system equipped with a proportional-integral controller. The adequacy of the proposed result is confirmed using simulation studies.

scholarly journals Further Results on Delay-Dependent Stability of Multi-Area Load Frequency Control

2013 ◽  
Vol 28 (4) ◽  
pp. 4465-4474 ◽  
Author(s):  
Chuan-Ke Zhang ◽  
L. Jiang ◽  
Q. H. Wu ◽  
Yong He ◽  
Min Wu
Keyword(s):  
Frequency Control ◽  
Load Frequency Control ◽  
Load Frequency ◽  
Delay Dependent ◽  
Delay Dependent Stability
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