Journal ArticleDOI
Robust SVC controller design for improving power system damping
Qihua Zhao,Jin Jiang +1 more
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TLDR
In this article, a robust controller for a static VAr compensator (SVC) to improve the damping of a power system is presented. But the design of the robust controller is not addressed in this paper.Abstract:
The design of a robust controller for a static VAr compensator (SVC) to improve the damping of a power system is presented. The main contributions of the paper are to formulate and to solve the power system damping control problem using robust optimization techniques, and to synthesize the controller with explicit consideration of the system operating condition variations. Nonlinear simulations using the PSCAD/EMTDC software packages have been conducted to evaluate the performance of the closed-loop system. The results have indicated that the designed controller can provide positive damping to the system under a wide range of operating conditions.read more
Citations
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Book
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.
Book
Robust Control in Power Systems
Bikash C. Pal,Balarko Chaudhuri +1 more
TL;DR: In this article, the authors proposed a mixed sensitivity approach using Linear Matrix Inequalities (LMIIN) for loop-shaping in power systems. And they also proposed a control for time-delayed systems.
Journal ArticleDOI
Choice of FACTS device control inputs for damping interarea oscillations
TL;DR: In this paper, a method is proposed to select the input signals for both single and multiple flexible ac transmission system (FACTS) devices in small and large power systems, and different input-output controllability analyses are used to assess the most appropriate input signals (stabilizing signal) for the static var compensator, the static synchronous compensator (SSSC), and the unified power flow controller (UPFC).
Journal ArticleDOI
Mixed-sensitivity approach to H/sub /spl infin// control of power system oscillations employing multiple FACTS devices
TL;DR: In this article, a decentralized H/sub /spl infin// damping control design based on the mixed-sensitivity formulation in the linear matrix inequality (LMI) framework is carried out.
Journal ArticleDOI
A comparison of classical, robust, and decentralized control designs for multiple power system stabilizers
TL;DR: In this article, the classical phase compensation approach, the /spl mu/-synthesis, and a linear matrix inequality technique were used to coordinate two power system stabilizers to stabilize a 5-machine equivalent of the South/Southeast Brazilian system.
References
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Journal ArticleDOI
Robust control and H ∞ -optimization: tutorial paper
TL;DR: The paper presents a tutorial exposition of H∞-optimal regulation theory, emphasizing the relevance of the mixed sensitivity problem for robust control system design.
Journal ArticleDOI
Damping torque analysis of static VAR system controllers
K.R. Padiyar,Rajiv K. Varma +1 more
TL;DR: 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.
Journal ArticleDOI
A robust frequency domain optimization technique for tuning series compensation damping controllers
Glauco N. Taranto,Joe H. Chow +1 more
TL;DR: In this paper, the authors present a systematic design procedure based on the H/sub /spl infin// optimization technique for tuning robust damping controllers of power system thyristor controlled series compensation (TCSC) for a wide range of operating conditions.
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.
Journal ArticleDOI
Robust controller design for generator excitation systems
Qihua Zhao,Jin Jiang +1 more
TL;DR: In this paper, a robust controller for generator excitation systems is proposed to improve the steady-state and transient stabilities of generator generators by treating the nonlinear characteristics of the generator as model uncertainties, and taking into account such uncertainties at the controller design stage using a robust control methodology.