Journal ArticleDOI
Improved load-frequency self-tuning regulator
TLDR
In this paper, a self-tuning regulator is used as a local area controller for interconnected power systems, where the area control error, composed of the area frequency error and the total tie-line power deviation for the area, are used as the regulator input variable.Abstract:
A self-tuning regulator is used as a local area controller for interconnected power systems. The area control error, composed of the area frequency error and the total tie-line power deviation for the area, is used as the regulator input variable. By changing the relative weights on the frequency error and on the tie-line power deviation according to their respective variances, it is possible to approach the minimum variances of the individual variables. The proposed regulator can handle unpredicable load changes of random magnitude and duration. Studies on a two-area power system show that with this regulator the system performance is improved over that with the traditional type of load-frequency controller. Because only locally available measurements are required for each area controller, the proposed regulator can be implemented easily using microprocessors.read more
Citations
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Journal ArticleDOI
Recent philosophies of automatic generation control strategies in power systems
TL;DR: In this paper, the authors present a critical literature review and an up-to-date and exhaustive bibliography on the AGC of power systems, highlighting various control aspects concerning the AGG problem.
Journal ArticleDOI
A literature survey on load–frequency control for conventional and distribution generation power systems
TL;DR: An extensive literature review on load-frequency control (LFC) problem in power system has been highlighted in this article, where various configuration of power system models and control techniques/strategies that concerns to LFC issues have been addressed in conventional as well as distribution generation-based power systems.
Journal ArticleDOI
Unified Tuning of PID Load Frequency Controller for Power Systems via IMC
TL;DR: In this article, a unified PID tuning method for load frequency control (LFC) of power systems is discussed, which is applicable to power systems with non-reheated, reheated, and hydro turbines.
Journal ArticleDOI
Load Frequency Control in Power Systems via Internal Model Control Scheme and Model-Order Reduction
Sahaj Saxena,Yogesh V. Hote +1 more
TL;DR: In this paper, a simple approach to load frequency control (LFC) design for the power systems having parameter uncertainty and load disturbance is proposed, which is based on two-degree-of-freedom, internal model control (IMC) scheme, which unifies the concept of model-order reduction like Routh and Pade approximations.
Journal ArticleDOI
Challenges and Opportunities of Load Frequency Control in Conventional, Modern and Future Smart Power Systems: A Comprehensive Review
Hassan Haes Alhelou,Mohamad-Esmail Hamedani-Golshan,Reza Zamani,Ehsan Heydarian-Forushani,Pierluigi Siano +4 more
TL;DR: This paper presents a comprehensive literature survey on the topic of LFC, and investigates the used LFC models for diverse configurations of power systems and proposes proposed control strategies for LFC for both conventional and future smart power systems.
References
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Journal ArticleDOI
On self tuning regulators
TL;DR: In this paper, the problem of controlling a system with constant but unknown parameters is considered and an algorithm obtained by combining a least squares estimator with a minimum variance regulator computed from the estimated model is analyzed.
Journal ArticleDOI
Optimum Megawatt-Frequency Control of Multiarea Electric Energy Systems
Olle I. Elgerd,Charles E. Fosha +1 more
TL;DR: In this article, the authors question seriously the basis for this practice and prove by the methods of optimum control that better response and wider stability margins can be obtained by lower bias settings.
Journal ArticleDOI
The Megawatt-Frequency Control Problem: A New Approach Via Optimal Control Theory
Charles E. Fosha,Olle I. Elgerd +1 more
TL;DR: This paper records the development of a state variable model of the megawatt-frequency control problem of multiarea electric energy systems in a mathematical form necessary for application of theorems of modem optimal control theory.
Journal ArticleDOI
Paper: Theory and applications of self-tuning regulators
TL;DR: The regulator algorithms, their theory and industrial applications are reviewed and the major ideas are covered but detailed analysis is given elsewhere.
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