Damping torque analysis of static VAR system controllers
K.R. Padiyar,Rajiv K. Varma +1 more
TLDR
In this paper, the use of damping torque technique to examine the efficacy of various control signals for reactive power modulation of a midpoint-located static VAr system (SVS) in enhancing the power transfer capability of long transmission lines is considered.Abstract:
The use of a damping torque technique to examine the efficacy of various control signals, for reactive power modulation of a midpoint-located static VAr system (SVS) in enhancing the power transfer capability of long transmission lines is considered. A new auxiliary signal, the computed internal frequency (CIF), is proposed which synthesizes the internal voltage frequency of the remote generator from electrical measurements at the SVS bus. It is demonstrated that this signal is far superior to other conventional auxiliary control signals in that it allows full utilization of the network transmission capacity. The damping torque results are correlated with those obtained from eigenvalue analysis. >read more
Citations
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Thyristor-Based Facts Controllers for Electrical Transmission Systems
R. Mohan Mathur,Rajiv K. Varma +1 more
TL;DR: In this paper, the authors present a comparison of different SVC controllers for power transmission networks with respect to their performance in terms of the number of SVC inputs and outputs, as well as the frequency of the SVC outputs.
Journal ArticleDOI
Damping controller design for power system oscillations using global signals
TL;DR: In this paper, a new power system stabilizer (PSS) design for damping power system oscillations focusing on inter-area modes is described, and two global signals are suggested; the tie-line active power and speed difference signals.
Book
Nonlinear control systems and power system dynamics
TL;DR: This book discusses the design Principles of Single-Input Single-Output Nonlinear Control Systems and their applications in Electric Power Systems and Nonlinear Excitation Control of Large Synchronous Generators.
Journal ArticleDOI
A unified model for the analysis of FACTS devices in damping power system oscillations. I. Single-machine infinite-bus power systems
H.F. Wang,F.J. Swift +1 more
TL;DR: In this article, a unified model of a power system installed with three flexible AC transmission systems is established, and their effectiveness in suppressing power system oscillations is investigated by analysing their damping torque contributions.
Journal ArticleDOI
Application of static VAr compensators to increase power system damping
TL;DR: In this paper, a theory for analyzing power system damping enhancement by application of static VAr compensators (SVCs) has been developed using the equal area criterion, where the SVC reactive power output at discrete points is determined from the power deviation on a transmission line.
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
Computer representation of excitation systems
TL;DR: This paper suggests a common nomenclature and control system representation of the various excitation systems now available that can be used to define input data requirements for computer programs, and can provide a consistent format in which manufacturers can respond to requests for excitation system data to be used for system studies.
Journal ArticleDOI
Static Reactive Compensation for Power Transmission Systems
TL;DR: In this paper, the application of static reactive compensators (SVCs) to power transmission systems is discussed, and it is shown that SVCs can provide significant benefits in terms of increased transient stabilty and improved damping for synchronizing power flow oscillations.
Static reactive-power compensator controls for improved system stability
M. O'Brien,Gerard Ledwich +1 more
TL;DR: In this article, a simplified analysis of the effect of a static reactive-power compensator on the stability of a two-machine system is presented, which shows that the SVC's damping effectiveness is greatly affected by a self-feedback term, whereby a change in SVC suceptance changes the measurement signal which is used to control SVC.