Aggressive Control Design for Electric Power Generation Plants

Dritsas, Leonidas; Kontouras, Efstathios; Kitsios, Ioannis; Tzes, Anthony

doi:10.1109/med.2018.8442593

Cited by 8 publications

(10 citation statements)

References 19 publications

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“…This is a state-space representation equivalent (no loss of information) with the original full-state representation, also complying with the formulation (15), which moreover is controllable and can be used for aggressive controller design as done in [7][8][9][10][11].…”

Section: A Fully Interconnected Two Area Examplementioning

confidence: 98%

“…(which maps the state of the model to the performance variable) where B z is defined in equation (11). Then the augmented system (Â a ,B a ), wherê…”

Section: Which Implies (Ii)mentioning

confidence: 99%

“…The design methodology for H ∞ and pole clustering Static State Feedback (SSF) control synthesis for the LFC problem, has been described quite extensively in [3,9,11,29] and only a brief description of the proposed approach will be given here.…”

Section: B Linear (Lmi Based) Lfc Design Combining H ∞ and Pole Clusteringmentioning

confidence: 99%

“…where again Λ(X,Y ) = AX + B u Y and the controller gain is computed as K = Y X −1 [9,11,16,41]. Now the two sets of LMIs ( 46) and ( 47), reflecting respectively disturbance attenuation and transient performance control objectives, can be combined into one LMI by demanding that the decision variables X,Y appearing in each set are common.…”

Section: B Linear (Lmi Based) Lfc Design Combining H ∞ and Pole Clusteringmentioning

confidence: 99%

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Modelling issues and aggressive robust load frequency control of interconnected electric power systems

Dritsas

Kontouras

Vlahakis

et al. 2020

International Journal of Control

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This article is concerned with modelling, controllability analysis and the design of aggressive robust controllers for interconnected electric power systems. The load/frequency controller relies on a pole clustering scheme and provides the fastest transient response despite any disturbance load application. The inherent saturation constraints are handled by the combination of a controller gain minimization scheme and an anti-windup enhanced controller design which provides stability guarantees, while avoiding frequency and tie-line power oscillations. For this scheme, particular attention should be paid on the modeling aspects of the power system. It is shown that due to the positive semidefinite graph-connection Laplacian of the system, a reduction of the state vector is necessary. Simulation studies are offered to illustrate the effectiveness of the suggested scheme.

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Section: A Fully Interconnected Two Area Examplementioning

confidence: 98%

“…(which maps the state of the model to the performance variable) where B z is defined in equation (11). Then the augmented system (Â a ,B a ), wherê…”

Section: Which Implies (Ii)mentioning

confidence: 99%

Section: B Linear (Lmi Based) Lfc Design Combining H ∞ and Pole Clusteringmentioning

confidence: 99%

Section: B Linear (Lmi Based) Lfc Design Combining H ∞ and Pole Clusteringmentioning

confidence: 99%

See 2 more Smart Citations

Modelling issues and aggressive robust load frequency control of interconnected electric power systems

Dritsas

Kontouras

Vlahakis

et al. 2020

International Journal of Control

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“…A systematic methodology based on reachability for identifying the impact of potential cyber attacks in the Automatic Generation Control (AGC) of a two-area power system has been presented in [26]. Set-theoretic method for LFC design in the context of cyber-physical power systems can be found in [27], while in [28], the authors propose LFC design based on an anti-windup compensator, assuring stability of the closed-loop system even in cases of large load disturbance. Model predictive control has also attracted attention from the power system community in recent years due to its convenience in managing online disturbance rejection problems with state and input constraints, which is a highly desired feature in a multi-area power system control.…”

Section: Introductionmentioning

confidence: 99%

Distributed LQR Design for a Class of Large-Scale Multi-Area Power Systems

2019

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Load frequency control (LFC) is one of the most challenging problems in multi-area power systems. In this paper, we consider power system formed of distinct control areas with identical dynamics which are interconnected via weak tie-lines. We then formulate a disturbance rejection problem of power-load step variations for the interconnected network system. We follow a top-down method to approximate a centralized linear quadratic regulator (LQR) optimal controller by a distributed scheme. Overall network stability is guaranteed via a stability test applied to a convex combination of Hurwitz matrices, the validity of which leads to stable network operation for a class of network topologies. The efficiency of the proposed distributed load frequency controller is illustrated via simulation studies involving a six-area power system and three interconnection schemes. In the study, apart from the nominal parameters, significant parametric variations have been considered in each area. The obtained results suggest that the proposed approach can be extended to the non-identical case.

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