Damping of Low-Frequency Oscillations by Supplementary Control of Power System Stabilizers

Febres, C.A.T.; Araujo, Percival Bueno de; Furini, Marcos Amorielle

doi:10.5540/tema.2008.09.02.0223

Cited by 9 publications

(9 citation statements)

References 10 publications

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“…However, the output of the PSS (DV sup ) is added to the control loop of the Automatic Voltage Regulator (AVR) of the generator to which the PSS is connected. Details of the generators (third-order model) and AVRs (first-order model) used in this work can be seen in [2,12].…”

Section: Structures Of the Pss And Pod Controllersmentioning

confidence: 99%

“…(12) and (13), P L,n and Q L,n are flows controlled by the device under study and that will serve as input to the structure of the GUP-FC control system as presented in the next section. P ni and Q ni are the active and reactive power flows of the conventional load flow.…”

Section: Gupfc Power Injection Modelmentioning

confidence: 99%

“…(14) and (22)), linearized around an operating base point are included in the power sensitivity model to obtain the matrix of states of the system. This enables calculation of the eigenvalues, eigenvectors and participation factors of the system under study [12].…”

Section: Structures Of the Pss And Pod Controllersmentioning

confidence: 99%

See 2 more Smart Citations

The influence of GUPFC FACTS device on small signal stability of the electrical power systems

Valle¹,

Araujo²

2015

International Journal of Electrical Power & Energy Systems

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Section: Structures Of the Pss And Pod Controllersmentioning

confidence: 99%

Section: Gupfc Power Injection Modelmentioning

confidence: 99%

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The influence of GUPFC FACTS device on small signal stability of the electrical power systems

Valle¹,

Araujo²

2015

International Journal of Electrical Power & Energy Systems

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“…The most method used for the selection of machines, which must be equipped with PSS, is the method of Participation Factors [5,8,12,14,17].…”

Section: B Design Of Pss Parametermentioning

confidence: 99%

Stability analysis for large power system interconnections (Tunisia-Libya)

Jebali

Salah

Kahouli

et al. 2015

2015 4th International Conference on Systems and Control (ICSC)

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The interconnections between the national power systems was developed parallel to networks of each country. Originally, the interconnections used to get outside help in case of failure could affect the security of a country national electricity supply. In electrical power networks small oscillations appear from time to time. These oscillations concern the quantities determining the equilibrium point of the system, and following which, system stability and system behaviors are influenced. To improve system behaviors and dynamic stability it is necessary to minimize these transient states. The objective of our study is, first, to check the static stability of the high voltage power to small perturbations of electrical network. In this context, we present a study based on the modal analysis of the linearized system. The results of this analysis allow us to obtain the optimal placement of power regulators PSS injected at the input of voltage regulator AVR based on the matrix of participation. The calculation of these parameters is performed by the regulators method residues.In this paper, the study is structured around one main objective: to have a real interconnection Tunisia-Libya with a stable, efficient and solider operation.Keywords small oscillations, the static stability of Libyan electrical network, the stability of the Tunisian network interconnected with the one of Libya, PSS, AVR,the method of participation factors, method residues.

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“…Once the desired damping is fixed, the required displacement of i λ , i.e., i λ Δ , could be determined; and the WADC i parameters can then be calculated as follows [17]:…”

Section: Design Of Adaptive Wadcmentioning

confidence: 99%

Adaptive Wide-Area Damping Control Scheme for Smart Grids with Consideration of Signal Time Delay

2013

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Abstract:As an important part of the smart grid, a wide-area measurement system (WAMS) provides the key technical support for power system monitoring, protection and control. But 20 uncertainties in system parameters and signal transmission time delay could worsen the damping effect and deteriorate the system stability. In the presented study, the subspace system identification technique (SIT) is used to firstly derive a low-order linear model of a power system from the measurements. Then, a novel adaptive wide-area damping control scheme for online tuning of the wide-area damping controller (WADC) parameters using the residue method is proposed. In order to eliminate the effects of the time delay to the signal transmission, a simple and practical time delay compensation algorithm is proposed to compensate the time delay in each wide-area control signal. Detailed examples, inspired by the IEEE test system under various disturbance scenarios, have been used to verify the effectiveness of the proposed adaptive wide-area damping control scheme.

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Damping of Low-Frequency Oscillations by Supplementary Control of Power System Stabilizers

Cited by 9 publications

References 10 publications

The influence of GUPFC FACTS device on small signal stability of the electrical power systems

The influence of GUPFC FACTS device on small signal stability of the electrical power systems

Stability analysis for large power system interconnections (Tunisia-Libya)

Adaptive Wide-Area Damping Control Scheme for Smart Grids with Consideration of Signal Time Delay

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