Robust load-frequency control for uncertain nonlinear power systems

A fuzzy logic approach

Ho Jae Lee, Jin Bae Park, Young Hoon Joo

Research output: Contribution to journalArticle

65 Citations (Scopus)

Abstract

A new robust load-frequency control (LFC) methodology is proposed for controlling uncertain nonlinear power systems. Critical nonlinearity in the power system-the valve position limit on the governor, and the parametric uncertainty are concerned. The Takagi-Sugeno fuzzy model of the power system under consideration is first constructed to design the robust fuzzy-model-based LFC. Sufficient conditions for the robust asymptotic convergence of the frequency deviation are then provided in terms of linear matrix inequalities. Boundedness of the other system variables is also studied to ensure justifiable grounds for use of the proposed LFC method. Simulation results convincingly validate the effectiveness of the novel LFC design scheme and the theoretical discussions, which give a positive answer to the quality control of the electric energy.

Original languageEnglish
Pages (from-to)3520-3537
Number of pages18
JournalInformation sciences
Volume176
Issue number23
DOIs
Publication statusPublished - 2006 Dec 4

Fingerprint

Power System
Fuzzy Logic
Fuzzy logic
Nonlinear Systems
Governors
Linear matrix inequalities
Takagi-Sugeno Fuzzy Model
Asymptotic Convergence
Parametric Uncertainty
Quality control
Quality Control
Fuzzy Model
Control Design
Matrix Inequality
Linear Inequalities
Boundedness
Deviation
Power system
Nonlinearity
Model-based

All Science Journal Classification (ASJC) codes

  • Statistics and Probability
  • Electrical and Electronic Engineering
  • Statistics, Probability and Uncertainty
  • Information Systems and Management
  • Information Systems
  • Computer Science Applications
  • Artificial Intelligence

Cite this

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abstract = "A new robust load-frequency control (LFC) methodology is proposed for controlling uncertain nonlinear power systems. Critical nonlinearity in the power system-the valve position limit on the governor, and the parametric uncertainty are concerned. The Takagi-Sugeno fuzzy model of the power system under consideration is first constructed to design the robust fuzzy-model-based LFC. Sufficient conditions for the robust asymptotic convergence of the frequency deviation are then provided in terms of linear matrix inequalities. Boundedness of the other system variables is also studied to ensure justifiable grounds for use of the proposed LFC method. Simulation results convincingly validate the effectiveness of the novel LFC design scheme and the theoretical discussions, which give a positive answer to the quality control of the electric energy.",
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Robust load-frequency control for uncertain nonlinear power systems : A fuzzy logic approach. / Lee, Ho Jae; Park, Jin Bae; Joo, Young Hoon.

In: Information sciences, Vol. 176, No. 23, 04.12.2006, p. 3520-3537.

Research output: Contribution to journalArticle

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