Flicker mitigation by reactive power control in wind farm with doubly fed induction generators

Girbau-Llistuella, Francesc; Sumper, Andreas; Díaz‐González, Francisco; Arellano, Samuel Galceran

doi:10.1016/j.ijepes.2013.09.016

Cited by 26 publications

(20 citation statements)

References 25 publications

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“…Same as expressed about the eliminations of E rdq effects, using the feed-forward compensator is suitable when these terms seriously cause power quality problems. By compensating the cross coupling terms, the d and q axes rotor current control loops will be decoupled [6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24].…”

Section: Electrical Modelmentioning

confidence: 99%

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A new approach for power quality improvement of DFIG based wind farms connected to weak utility grid

Mahvash

Taher

Rahimi

2017

Ain Shams Engineering Journal

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Most of power quality problems for grid connected doubly fed induction generators (DFIGs) with wind turbine include flicker, variations of voltage RMS profile, and injected harmonics due to switching in DFIG converters. Flicker phenomenon is the most important problem in wind power systems. This paper described an effective method for mitigating flicker emission and power quality improvement for a fairly weak grid connected to a wind farm with DFIGs. The method was applied in the rotor side converter (RSC) of the DFIG to control the output reactive power. q axis reference current was directly derived according to the mathematical relation between rotor q axis current and DFIG output reactive power without using PI controller. To extract the reference reactive power, the stator voltage control loop with the droop coefficient was proposed to regulate the grid voltage level in each operational condition. The DFIG output active power was separately controlled in d axis considering the stator voltage orientation control (SVOC). Different simulations were carried out on the test system and the flicker short term severity index ðP st Þ was calculated for each case study using the discrete flickermeter model according to IEC 61400 standard. The obtained results validated flicker mitigation and power quality enhancement for the grid. Ó 2015 Faculty of Engineering, Ain Shams University. Production and hosting by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).

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Section: Electrical Modelmentioning

confidence: 99%

“…Recently, a novel voltage control combined with reactive power control was suggested in [20] by an algorithm to extract the reference voltage value for the point of common coupling (PCC). The control system is composed of two controllers in cascade for the wind farm and turbine control.…”

Section: Introductionmentioning

confidence: 99%

A new approach for power quality improvement of DFIG based wind farms connected to weak utility grid

Mahvash

Taher

Rahimi

2017

Ain Shams Engineering Journal

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“…En este sentido, el control del parque eólico facilita la integración en las redes eléctricas débiles mediante el intercambio de potencia reactiva con la red. Por otra parte, este tipo de controlador posee las características para dar estabilidad, rapidez y robustez en el despacho del parque eólico, este tipo de control garantiza que la turbina de viento local pueda cambiar y controlar el punto de ajuste de la potencia reactiva con la red (Girbau et al, 2014).…”

Section: Transitoriosunclassified

“…La mitigación de flickers mecánicamente se puede realizar con el incremento en el diámetro de las palas (Girbau et al, 2014). …”

Section: Flickerunclassified

Influencia de las ráfagas de viento en la calidad de la energía de los parques eólicos

2014

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(Recibido: 2014/04/30 - Aceptado: 2014/09/22)La matriz energética mundial está cambiando debido a que el consumo de energía en los últimos años se ha duplicado. En muchos países la instalación de centrales de energías renovables no convencionales se ha convertido en la solución a este crecimiento. La integración de este tipo de energías a la red eléctrica causa interés en el estudio de las propiedades eléctricas que afectan la producción de energía. Este documento es una revisión de los conceptos y fenómenos de calidad de energía y cómo estos se generan en parques eólicos. La eficiencia de los aerogeneradores se ve afectada por diversos factores, entre los cuales se destacan: las maniobras en subestaciones y los factores climáticos como las ráfagas de viento causantes de variaciones en la curva de potencia. El monitoreo constante en los sistemas eléctricos y el análisis de datos ofrece un alto potencial en la mejora de los procesos de producción y distribución de la energía.

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“…+34 933562615 Corresponding Author (Lewis Johnston) work planning, as expected generation level depends on non reliable wind forecasts. Power quality is also reduced, as the fast fluctuations of wind power can cause harmonics and flicker emissions [1,2,3]. For these reasons, network operators are gradually setting up more stringent requirements for the grid integration of wind power [5,6,7].…”

Section: Introductionmentioning

confidence: 99%

Methodology for the economic optimisation of energy storage systems for frequency support in wind power plants

et al. 2015

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This paper proposes a methodology for the economic optimisation of the sizing of Energy Storage Systems (ESSs) whilst enhancing the participation of Wind Power Plants (WPP) in network primary frequency control support. A generalised approach was taken for the design of the methodology, so it can be applied to different energy markets and concerning different ESSs. The methodology includes the formulation and solving of a Linear Programming (LP) problem.The methodology was applied to the particular case of a 50 MW WPP, equipped with Vanadium Redox Flow battery (VRB) in the UK energy market. Analysis is performed considering real data on the regular and frequency response markets of UK. Data for wind power generation and energy storage costs are estimated from literature.Results suggest that, under certain assumptions, ESSs can be profitable for the operator of a WPP that is providing frequency response. The ESS provides power reserves such that the WPP can generate close to the maximum energy available. The solution of the optimisation problem establishes that an ESS with a power rating of 5.3 MW and energy capacity of about 3 MWh would be enough to provide such service whilst maximizing the incomes for the WPP operator considering the regular and frequency regulation UK markets.Methodology for the economic optimisation of energy storage systems for frequency support in wind power plants Abstract This paper proposes a methodology for the economic optimisation of the sizing of Energy Storage Systems (ESSs) whilst enhancing the participation of Wind Power Plants (WPP) in network primary frequency control support. A generalised approach was taken for the design of the methodology, so it can be applied to different energy markets and concerning different ESSs. The methodology includes the formulation and solving of a Linear Programming (LP) problem.The methodology was applied to the particular case of a 50 MW WPP, equipped with Vanadium Redox Flow battery (VRB) in the UK energy market. Analysis is performed considering real data on the regular and frequency response markets of UK. Data for wind power generation and energy storage costs are estimated from literature.Results suggest that, under certain assumptions, ESSs can be profitable for the operator of a WPP that is providing frequency response. The ESS provides power reserves such that the WPP can generate close to the maximum energy available. The solution of the optimisation problem establishes that an ESS with a power rating of 5.3 MW and energy capacity of about 3 MWh would be enough to provide such service whilst maximizing the incomes for the WPP operator considering the regular and frequency regulation UK markets.

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Flicker mitigation by reactive power control in wind farm with doubly fed induction generators

Cited by 26 publications

References 25 publications

A new approach for power quality improvement of DFIG based wind farms connected to weak utility grid

A new approach for power quality improvement of DFIG based wind farms connected to weak utility grid

Influencia de las ráfagas de viento en la calidad de la energía de los parques eólicos

Methodology for the economic optimisation of energy storage systems for frequency support in wind power plants

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