Journal ArticleDOI
Application of an Optimal Control Theory to a Power System
TLDR
An attempt is made to apply a certain class of optimal control theory to obtain an optimal controller to improve the dynamic response of a power system.Abstract:
In recent years important research has been done in the area of system optimization by control engineers. Many theoretical results have been published but application examples have mainly been on low-order systems. An attempt is made to apply a certain class of optimal control theory, known as the state regulator problem, to obtain an optimal controller to improve the dynamic response of a power system. The system differential equations are written in the first-order state variable form. A cost functional is then chosen, and the matrix Riccati equation is solved. Puri's and Gruver's method is applied for the numerical computation, and the system is made initially stable by shifting the system eigenvalues.read more
Citations
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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
Optimal Power System Stabilization Through Excitation and/or Governor Control
Hamdy A. M. Moussa,Yao-nan Yu +1 more
TL;DR: In this paper, a new method is developed to determine the weighting matrix Q of the performance function in conjunction with a left shift of the dominant eigenvalues as far as the practical controllers permit.
Journal ArticleDOI
Damping Inter-Area Oscillations Based on a Model Predictive Control (MPC) HVDC Supplementary Controller
TL;DR: In this paper, an approach for damping inter-area oscillations of power systems based on supplementary current control of a line-commutated HVDC link is presented.
Journal ArticleDOI
The control of a synchronous machine using optimal control theory
TL;DR: In this article, the selection of stabilizing signals to improve power system dynamic behavior is presented, and the closed-loop performance of this nonlinear system model with the derived linear optimal controller is evaluated for a wide range of input disturbances and operating conditions which include three phase fault studies with autoreclosure.
Journal ArticleDOI
Stabilization and Optimal Control Signals for a Power System
Yao-nan Yu,C. Siggers +1 more
TL;DR: In this article, a comparison is made of a lower-order linear model and a high-order non-linear system modelled as a single machine-infinite bus as well as multi-machine systems.
References
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Journal ArticleDOI
Concepts of Synchronous Machine Stability as Affected by Excitation Control
TL;DR: In this article, the stability of synchronous machines under small perturbations is explored by examining the case of a single machine connected to an infinite bus through external reactance, and the results are shown to be similar to ours.
Journal ArticleDOI
Two-reaction theory of synchronous machines generalized method of analysis-part I
TL;DR: Starting with the basic assumption of no saturation or hysteresis, and with distribution of armature phase m.
Journal ArticleDOI
The status of optimal control theory and applications for deterministic systems
TL;DR: In this article, the authors present some recent developments in the field of deterministic optimal control and apply the theory to problems of engineering interest, and a selected list of references is also included.
Journal ArticleDOI
Control of Rotating Exciters for Power System Damping: Pilot Applications and Experience
TL;DR: Control of rotating exciters to improve system damping has been carried forward in pilot applications to evaluate practicality, effectiveness, alinement needs, and operating characteristics.
Journal ArticleDOI
Field Tests of Dynamic Stability Using a Stabilizing Signal and Computer Program Verification
Richard M. Shier,Allan L. Blythe +1 more
TL;DR: In this paper, the authors conducted field tests to confirm that the equipment would behave as forecast and to provide confirmation of the assumptions and techniques employed in the use of the digital computer program.