Retuning stabilizers for the north-south Brazilian interconnection

Martins, N.; Barbosa, Adriano A. R.; Ferraz, J.C.R.; Santos, Maider; Bergamo, A.L.B.; Yung, Chou Shaw; Oliveira, Victor R. R. de; Macedo, N.J.P.

doi:10.1109/pess.1999.784325

Cited by 27 publications

(14 citation statements)

References 14 publications

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“…The SPA is really intended for the computation of only those eigenvalues of large scale systems that are most sensitive to parameter changes. Tracing root-locus plots for parameter changes in controllers of critical equipment [6], [7], [9], [11], aiding the gain coordination of power oscillation damping controllers [7], [12], and determining parametric stability margins [31], [32], are some of the many potential applications of this method.…”

Section: Sensitive Pole Algorithmmentioning

confidence: 99%

“…If the matrix depends on a parameter as well, the derivative of is given by (11) The descriptor formulation in [27] utilizes sensitivity formula (11) in the design of HVDC damping controllers. Accordingly, the application of the SPA algorithm to such formulation would need to be based on (11) to effectively produce root locus plots.…”

Section: Casementioning

confidence: 99%

“…The large system is a 1997 planning model for the Brazilian Interconnected Power System (BIPS/97) [11], [14], [23], [24]. The state-space realization has 1664 states, and the descriptor realization is of order .…”

Section: B Large-scale Power System I (1664 States)mentioning

confidence: 99%

“…The use of the QR method to trace root-locus plots, requiring 30 or more eigensolutions per set of parameters being changed, is therefore even for the moderately-sized BIPS model not a practical alternative. Obtaining rough traces of some critical root-locus branches of large power system models, using existing partial eigensolution methods that are not focused into this specific problem, can be very laborious [11], [12] and leads to barely acceptable results. A sparse eigenanalysis method that could efficiently compute the set of most sensitive poles for single or multiple parameter changes is therefore of high interest to power system dynamics and control as well as to other areas of engineering.…”

mentioning

confidence: 99%

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Computing Large-Scale System Eigenvalues Most Sensitive to Parameter Changes, With Applications to Power System Small-Signal Stability

Rommes

Martins

2008

IEEE Trans. Power Syst.

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This paper describes a new algorithm, named the Sensitive Pole Algorithm, for the automatic computation of the eigenvalues (poles) most sensitive to parameter changes in large-scale system matrices. The effectiveness and robustness of the algorithm in tracing root-locus plots is illustrated by numerical results from the small-signal stability analysis of realistic power system models. The algorithm can be used in many other fields of engineering that also study the impact of parametric changes to linear system models.Index Terms-Eigenvalues, eigenvalue sensitivity, large-scale eigenvalue problems, parametric stability margins, poles, power system dynamic stability, power system stability, root loci, small-signal stability, system oscillations, transfer functions.

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Section: Sensitive Pole Algorithmmentioning

confidence: 99%

Section: Casementioning

confidence: 99%

Section: B Large-scale Power System I (1664 States)mentioning

confidence: 99%

mentioning

confidence: 99%

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Computing Large-Scale System Eigenvalues Most Sensitive to Parameter Changes, With Applications to Power System Small-Signal Stability

Rommes

Martins

2008

IEEE Trans. Power Syst.

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“…OBUSTNESS assessment of Power System Stabilizers (PSS), to aid PSS tuning, may be carried out by simulating their performance for numerous events and probable system operation scenarios [1]. Robust control methods are of limited use in large power system models [2,3] due to the computational burden imposed by the available robust control design algorithms.…”

Section: Introductionmentioning

confidence: 99%

A synthetic system for the robustness assessment of power system stabilizers

Ferraz

Martins

Taranto³

IEEE PES Power Systems Conference and Exposition, 2004.

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This paper describes a method for the robustness assessment of the generator-voltage regulator-stabilizer set of individual power plants in large scale systems. This is carried out using a 2-bus synthetic system, whose parameters are varied to simulate the presence of electromechanical oscillations over a wide range of frequencies. The method helps predicting the generator-voltage regulator-stabilizer performance, when submitted to electromechanical oscillations of different nature (inter-area, local and intra-plant) in the actual multimachine environment.

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Coordination of Controllers to Development of Wide-Area Control System for Damping Low-Frequency Oscillations Incorporating Large Renewable and Communication Delay

Barnawi

2024

Arab J Sci Eng

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The modern power systems incorporate high penetration of renewable is a large, composite, interconnected network with dynamic behavior. The small disturbances occurring in the system may induce low-frequency oscillations (LFOs) in the system. If the (LFOs) are not suppressed within a stipulated time, it may cause system islanding or even blackouts. Hence, it is essential to investigate the behavior of the system under various levels of disturbances and control action must be taken to damp these oscillations. The established approach to damping the LFOs is by installing power system stabilizers (PSS). PSS uses the local signals from generators to control the oscillations. The dominant source of inter-area oscillations in power systems is due to overloaded weak interconnected lines, converter-interfaced generation, and the action of the high gain exciter present in the system. Consequently, wide area control is needed to control the inter-area oscillations existent in the system. This paper developed a coordinated design of conventional PSS, static compensator, renewable converters, and wide area controller for damping the local and inter-area oscillations in renewable incorporated power systems. The performance of the developed controller is evaluated through the time domain analysis and eigenvalue analysis. A comparison of the introduced controller has been done with other standard conventional methods. The choice of input signals for the wide area controller from the wide-area measurement system is done based on the controllability index. Additionally, the location of the controller must be identified to dampen the inter-area oscillations in the system. In this paper, the controllability index is calculated to find out the highly affected wide area signals for considering it as the feedback signal to a developed controller. The location of the controller is recognized by computing the participation factor. The developed controller has experimented on renewable incorporated large study power systems when time delay and noise are present in wide area signals.

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Retuning stabilizers for the north-south Brazilian interconnection

Cited by 27 publications

References 14 publications

Computing Large-Scale System Eigenvalues Most Sensitive to Parameter Changes, With Applications to Power System Small-Signal Stability

Computing Large-Scale System Eigenvalues Most Sensitive to Parameter Changes, With Applications to Power System Small-Signal Stability

A synthetic system for the robustness assessment of power system stabilizers

Coordination of Controllers to Development of Wide-Area Control System for Damping Low-Frequency Oscillations Incorporating Large Renewable and Communication Delay

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