A didactic procedure for designing power oscillation dampers of FACTS devices

Ayres, Hugo Murici; Kopcak, Igor; Castro, Marcelo Souza de; Milano, Federico; Costa, V.F. da

doi:10.1016/j.simpat.2010.02.007

Cited by 31 publications

(16 citation statements)

References 14 publications

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“…In conventional power plant for SGs, the PSS is implemented for the auxiliary controller to damp out the oscillations and enhance the LFOs in the system. Similarly, this PSS is also designed for DFIG-based WTG using anyone of the analyses such as trial and error method, frequency-domain analysis [20], residue analysis [9] and based on optimisation [12] to provide additional mechanical damping. It is necessary that the damped signals with a stable power are needed for the DFIG-WTG when it is connected to the grid.…”

Section: Modelling Of Pssmentioning

confidence: 99%

“…where n is the number of lead-lag blocks (n = 2), ΔX wf(pss) is the washout filter output, T w is the time constant of the washout filter, ΔX LL(pss) is the lead-lag output, T 1 -T 4 are the time constants of the compensator, V (pss) is the output of the voltage stabiliser, ω (pss) is the output of the rotor speed, K (pss) is the proportional gain, ϕ is the phase compensation and ω n is the critical frequency of oscillation for the input signal calculated [20]. The design of the generator rotor speed is same as above by replacing the v pss with ω pss .…”

Section: Model Of Voltage and Rotor Speed Stabilisermentioning

confidence: 99%

“…The set of differential equations with system parameters are arranged in the state-space model [20] and are given as…”

Section: Small Ssamentioning

confidence: 99%

See 2 more Smart Citations

Mathematical modelling and stability analysis of PSS for damping LFOs of wind power system

Bhukya

Mahajan

2018

IET Renewable Power Generation

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This study presents the impact of the doubly fed induction generator (DFIG) with power system stabiliser (PSS) on critical low-frequency oscillations (LFOs) caused by the synchronous generators (SGs). These LFOs arise due to uncertainties in a system such as generating/loading conditions, intermittent wind power and may cause instability. To improve the stability, the PSS is added. This study studies the effect of varying wind speed, DFIG locations and its capacity with and without PSS on stability. The system is analysed by replacing SGs with DFIG. The sensitivity analysis is carried out with wind power penetration and voltage gain as sensitivity parameters. This identifies electromechanical modes of oscillations that have positive and negative impacts on the system. The transient and small-signal stability (SSS) investigations are done using non-linear simulation and eigenvalue analysis, respectively. The system uncertainties are modelled using inverse output additive perturbation structure to elude the mathematical difficulty. The location and selection of best local input signals for PSS are evaluated from residue method and time-domain simulation analysis. The effectiveness and robustness of the proposed approaches are verified on IEEE 9-bus test system. The PSS improves the transient stability and SSS of the system.

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Section: Modelling Of Pssmentioning

confidence: 99%

Section: Model Of Voltage and Rotor Speed Stabilisermentioning

confidence: 99%

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Mathematical modelling and stability analysis of PSS for damping LFOs of wind power system

Bhukya

Mahajan

2018

IET Renewable Power Generation

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“…A regional pole constraint is also added and a quadratic performance index has been minimized for only the nominal plant. Flexible alternating current transmission (FACTS) devices equipped with a PSS provide more efficient oscillation damping (Ayres et al, 2010). In Farsangi et al (2003), a mixed H 2 /H N with regional pole placement is used to design FACTS-based damping controllers.…”

Section: Introductionmentioning

confidence: 99%

Resilient observer-based power system stabilizers

Soliman

2015

Transactions of the Institute of Measurement and Control

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With the development of power system interconnection, low-frequency oscillation is becoming more and more prominent, and may cause instability of power systems. In this paper, two sources of uncertainty are modelled: plant and controller uncertainties. The non-linear dynamics of power systems under wide load variations are represented by a linear model with uncertainty in the form of a norm-bounded structure. The controller uncertainty resulting from resistor tolerance used in practical implementation is also represented by a norm-bounded model. This paper presents the design of resilient power system stabilizers (PSSs). The proposed PSS keeps stability against plant uncertainty and controller gain errors in the form of a linear matrix inequality (LMI)-sufficient condition. In addition to robust stability, the PSS design achieves regional pole placement to control the settling time and damping ratio, and consequently achieves good dynamic performance. The simulation shows that the proposed PSS design is efficient using the power system model and can drastically improve the dynamic performance of a single machine and a multi-machine power system.

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“…Yapılandırılan bu model Şekil 3'te gösterilmiştir. POD tarafından eklenen sönümleme miktarını belirler ve faz kompansatör blokları, giriş sinyalinin uygun faz gecikme telafisini sağlar[12].GSS parametrelerinin ayarlanması için birkaç tasarım yöntemi kullanılabilir. En popüler olanları sistemin frekans tepkisi, özdeğer hassasiyeti ve frekans-özdeğer birleşmesine dayanır.…”

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Güç Sistemlerinde Geçici Kararlılık için UPFC, GSSC ve Alt-Geçici Dinamik Modellerin Geliştirilmesi

Döşoğlu

2020

Düzce Üniversitesi Bilim Ve Teknoloji Dergisi

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Güç sistemlerinin çalışması esnasında bazı nedenlerden dolayı kararsızlık problemleri ile karşı karşıya kalmaktadır. Kararsızlık problemlerinin en önemli nedenlerinden birisi kısa devre durumlarıdır. Kısa devre güç sistemlerinde salınımlara sebep olmaktadır. Bu salınımları ortadan kaldırmak için Güç Salınım Sönümleme Kontrolü (GSSC) kullanılmaktadır. Bu çalışmada, güç sistemlerinde osilasyonların sönümlenmesi için Kundur 4 makinalı sistemde farklı senaryolar ile analizler gerçekleştirilmiştir. Ayrıca çok makinalı sistemde kullanılan senkron generatörlerin alt-geçici durum dinamik modellemeleri bu çalışmada tercih edilmiştir. Birleştirilmiş Güç Akışı Kontrolü (UPFC), GSSC ve alt-geçici durum dinamik modellemelerinin kullanıldığı ve kullanılmadığı durumlarda karşılaştırmalar yapılmıştır. Elde edilen sonuçlar ile geliştirilen modellerin geleneksel olarak kullanılan modellere göre sistemi kısa sürede kararlı hale getirdiği ve salınımların azalttığı görülmüştür.

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A didactic procedure for designing power oscillation dampers of FACTS devices

Cited by 31 publications

References 14 publications

Mathematical modelling and stability analysis of PSS for damping LFOs of wind power system

Mathematical modelling and stability analysis of PSS for damping LFOs of wind power system

Resilient observer-based power system stabilizers

Güç Sistemlerinde Geçici Kararlılık için UPFC, GSSC ve Alt-Geçici Dinamik Modellerin Geliştirilmesi

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