Simplified Modeling of a DFIG for Transient Studies in Wind Power Applications

Luna, Álvaro; Lima, Francisco Kleber de Araújo; Santos, David Ferreira Lopes; Rodriguez, P.; Watanabe, Edson H.; Arnaltes, Santiago

doi:10.1109/tie.2010.2044131

Cited by 159 publications

(59 citation statements)

References 34 publications

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“…MPPT algorithm using optimum torque is used to obtain a maximum power in tall power turbines because of its effortlessness [6]- [10]. Simplified model of DFIG is studied and improved performance during sag condition has been analyzed [11]. Low voltage ride through problem is discussed for different wind electric generators [12]- [15].…”

Section: Introductionmentioning

confidence: 99%

Control Strategy Used in DFIG and PMSG Based Wind Turbines an Overview

Meenakshi¹,

Paramasivam²

2017

IJPEDS

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Nowadays, fossil combustibles are replaced by renewable energy sources. These renewable energies are nontoxic, dirt free, protected and reasonably cheap for the end-users. Renewable energy resources like bio-gas, geothermal, solar, tidal waves and wind have been found as the best alternative energy sources. Among these renewable energy sources, wind energy stands first and foremost for generating electricity.In order to have a constant utilization of wind energy maximum power from wind energy has to be extracted. In this paper, various control strategies prevalent to both the Doubly Fed Induction Generator (DFIG) and Permanent Magnet Synchronous Generator (PMSG) have been analyzed. In addition, control topologies applicable to power electronics converter/inverter used in wind electric generators are discussed.

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Section: Introductionmentioning

confidence: 99%

Control Strategy Used in DFIG and PMSG Based Wind Turbines an Overview

Meenakshi¹,

Paramasivam²

2017

IJPEDS

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“…As an environmentally friendly resource, wind energy has been developed quickly in recent years [1][2], which has led to the explosive growth of wind turbines connected to the power grid. With obvious disadvantages of variable production, however, the large amount of wind turbines integrated to the grid will bring a great impact of low-frequency oscillation and wind turbine shaft torsional vibration on power system [3].…”

Section: Introductionmentioning

confidence: 99%

Torsional vibration characteristic study of the grid-connected DFIG wind turbine

Xie

et al. 2017

IOP Conf. Ser.: Earth Environ. Sci.

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Abstract. This paper studies the torsional vibration characteristics of the grid-connected doubly-fed induction generator (DFIG) wind turbine by small signal analysis method. Firstly a detailed small-signal stability union model of the grid-connected DFIG wind turbine is developed, including the mechanical system and electrical system. To study the dynamic characteristic of the blade, gearbox, low speed and high speed shafts, a three mass shaft model for the mechanical system is adopted. At the same time, small signal models of DFIG, the voltage source converter (VSC) and the transmission line of the electrical system are developed respectively. Then, through calculating the eigenvalues of the state matrix A and the corresponding participation factors, the modal analysis is conducted in the shaft torsional vibration issues. And the impact of the system parameters including the series compensation capacitor, the flat-wave reactor, the PI parameters, especially the speed controller of generator rotor on shaft torsional vibration are discussed. The results show that the speed controller strengthens association between the mechanical system and the electrical system, and also produces a low-frequency oscillation mode.

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“…The DFIG technology allows extracting maximum energy from the wind for low wind speeds by optimizing the turbine speed, while minimizing mechanical stresses on the turbine during gusts of wind. Luna et al [1] presented a deducted mathematical model of DFIG along with simulations & experimental results using PSCAD/EMTDC software. They simplified the modelling of DFIG in stator voltage, active & reactive power, stator current Liserre and Molinas [2] presented the most-adopted wind-turbine systems, the adopted generators, the topologies of the converters, the generator control and grid connection issues, as well as their arrangement in wind parks Ekanayake et al [3] presented an accurate model of DFIG wind turbines and their associated control & protection circuits.…”

Section: Introductionmentioning

confidence: 99%

Transient Behavior of Doubly Fed Induction Generator Using Simulink Model in Wind Energy Conversion System

Kumar¹

2015

IJIRSET

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ABSTRACT:In this paper, transient behaviours of the Doubly Fed Induction Generator using Simulink model is demonstrated. A mathematical model based on d-q transformation i.e. stator phase currents, rotor currents, stator flux linkages,rotor flux linkages ,instantaneous power electromagnetic torque is also presented. In this paper 9 MW wind farm consisting of six 1.5 MW wind turbines connected to a 25 kV distribution system exports power to a 120 kV grid through a 30 km, 25 kV feeder has been considered. It is concluded in proposed Simulink model, when 3-phase symmetrical fault occur at the grid during t = 0.04s to t = 0.06s, the sudden voltage reduction gives to a lower power injection into the network both active power & reactive power are almost abrupt. This behaviour also depends on the rotor side converter during the fault. KEYWORDS:Wind Energy, Transient condition, Renewable Energy, Doubly fed induction generator .I. INTRODUCTIONThe on-shore wind power potential is estimated to be 49,130 MW at 50 meter hub height, out of which total capacity of 18,420 MW has been installed up to Dec, 2012 in the country. India is now 5th world largest producer in the world after China, USA, Germany, and Spain [2]. Since share of wind power in the total installed power capacity is increasing worldwide, there is a strong need to develop new technology in the field such that its full potential can be harnessed. DFIG based wind farm is gaining popularity because of inherent advantages like variable speed operation& independent controllability of active and reactive power. When interconnected into power grid, it brings voltage stability problems during grid-side disturbances. So integration of DFIG-based wind farm to power grid, especially for transient analysis of DFIG system is major concern for power system engineers today with the present requirements. Wind turbines using a DFIG consist of a wound rotor induction generator and an AC/DC/AC IGBT-based PWM converter. The stator winding is connected directly to the 50 Hz grid while the rotor is fed at variable frequency through the AC/DC/AC converter. The DFIG technology allows extracting maximum energy from the wind for low wind speeds by optimizing the turbine speed, while minimizing mechanical stresses on the turbine during gusts of wind. Luna et al [1] presented a deducted mathematical model of DFIG along with simulations & experimental results using PSCAD/EMTDC software. They simplified the modelling of DFIG in stator voltage, active & reactive power, stator current Liserre and Molinas [2] presented the most-adopted wind-turbine systems, the adopted generators, the topologies of the converters, the generator control and grid connection issues, as well as their arrangement in wind parks Ekanayake et al [3] presented an accurate model of DFIG wind turbines and their associated control & protection circuits. A dynamic model had been prepared, to simulate the DFIG wind turbine using a single -cage and double -cage representation of the generator rotor, as well as a representati...

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Simplified Modeling of a DFIG for Transient Studies in Wind Power Applications

Cited by 159 publications

References 34 publications

Control Strategy Used in DFIG and PMSG Based Wind Turbines an Overview

Control Strategy Used in DFIG and PMSG Based Wind Turbines an Overview

Torsional vibration characteristic study of the grid-connected DFIG wind turbine

Transient Behavior of Doubly Fed Induction Generator Using Simulink Model in Wind Energy Conversion System

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