A Combined Vector and Direct Power Control for DFIG-Based Wind Turbines

Mohammadi, Jafar; Vaez‐Zadeh, Sadegh; Afsharnia, Saeed; Daryabeigi, E.

doi:10.1109/tste.2014.2301675

Cited by 158 publications

(82 citation statements)

References 14 publications

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“…The PWM converter acts on the rotor of the generator and the control is done by means of the signals of the rotor and the stator currents, the stator voltage, and the rotor position [23].…”

Section: Machine Side Controllermentioning

confidence: 99%

“…The main drawback of these works is their inability to cope with large changes in grid parameters. Furthermore, in B. Singh et al [19], the rotor position is estimated using stator voltage-current and rotor current, where the rotor is connected to a battery bank with a fixed DC-link voltage producing a fixed rotor current, which is not economical and applicable in large-scale wind farms as the rotor is connected to the grid through a DC-link converter and its voltage needs to be regulated to overcome the variations in the system, and in [23], the vector control and direct power controller for the rotor side converter is applied without any control for the DC-link voltage, which is an important issue for the practical operation of DFIG based Wind Energy Conversion System (WECS). Even though practical results from the previous studies have offered some useful hints for hardware setup, there is not enough detailed design available in the literature.…”

Section: Introductionmentioning

confidence: 99%

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Real-Time Control of Active and Reactive Power for Doubly Fed Induction Generator (DFIG)-Based Wind Energy Conversion System

2015

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This paper presents the modeling, rapid control prototyping, and hardware-in-the-loop testing for real-time simulation and control of a grid-connected doubly fed induction generator (DFIG) in a laboratory-size wind turbine emulator for wind energy conversion systems. The generator is modeled using the direct-quadrature rotating reference frame circuit along with the aligned stator flux, and the field-oriented control approach is applied for independent control of the active and reactive power and the DC-link voltage at the grid side. The control of the active, reactive power and the DC-link voltage are performed using a back-to-back converter at sub-and super-synchronous as well as at variable speeds. The control strategy is experimentally validated on an emulated wind turbine driven by the Opal-RT real-time simulator (OP5600) for simultaneous control of the DC-link voltage, active and reactive power.

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“…The PWM converter acts on the rotor of the generator and the control is done by means of the signals of the rotor and the stator currents, the stator voltage, and the rotor position [23].…”

Section: Machine Side Controllermentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Real-Time Control of Active and Reactive Power for Doubly Fed Induction Generator (DFIG)-Based Wind Energy Conversion System

2015

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“…Variable speed WECS have been many advantages: operation at maximized power capture over a wide range of wind speeds, reduced mechanical stresses imposed on the turbine, and improved power quality compared with fixed speed WECS[5], [6]. The variable speed WECS using the DFIGs are suitable and promising for application in wind energy.…”

Section: Introductionmentioning

confidence: 99%

“…The wind energy conversion system (WECS) has been considered to be one of the main energy resources are growing rapidly among the other renewable generation power technologies due to its freely available, clean and renewable character [3][4][5]. Wind energy conversion systems are basically divided into two fixed and variable speed.Variable speed WECS have been many advantages: operation at maximized power capture over a wide range of wind speeds, reduced mechanical stresses imposed on the turbine, and improved power quality compared with fixed speed WECS[5], [6]. The variable speed WECS using the DFIGs are suitable and promising for application in wind energy.…”

mentioning

confidence: 99%

A Complete Modeling and Control for Wind Turbine Based of a Doubly Fed Induction Generator using Direct Power Control

Senani¹,

Rahab²,

Benalla³

2017

IJPEDS

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The paper presents the complete modeling and control strategy of variable speed wind turbine system (WTS) driven doubly fed induction generators (DFIG). A back-to-back converter is employed for the power conversion exchanged between DFIG and grid. The wind turbine is operated at the maximum power point tracking (MPPT) mode its maximum efficiency. Direct power control (DPC) based on selecting of the appropriate rotor voltage vectors and the errors of the active and reactive power, the control strategy of rotor side converter combines the technique of MPPT and direct power control. In the control system of the grid side converter the direct power control has been used to maintain a constant DC-Link voltage, and the reactive power is set to 0. Simulations results using MATLAB/SIMULINK are presented and discussed on a 1.5MW DFIG wind generation system demonstrate the effectiveness of the proposed control. Keyword:Back-to-back converter DFIG DPC MPPT WTS Copyright © 2017 Institute of Advanced Engineering and Science.All rights reserved. Corresponding Author:Senani Fawzi, Laboratoire de l'Electrotechnique de Constantine (LEC), Faculté des Sciences de la Technologie, Université des frères Mentouri de Constantine 1, Ain el-bey 25000 Constantine, Algerie. Email: senani.fouzi@gmail.com INTRODUCTIONActually, there are several sources of renewable energy, wind energy, hydropower, geothermal energy, biomass, biofuel and solar energy [1]. Wind and solar electric power generation systems are popular renewable energy resources [2]. The wind energy conversion system (WECS) has been considered to be one of the main energy resources are growing rapidly among the other renewable generation power technologies due to its freely available, clean and renewable character [3][4][5]. Wind energy conversion systems are basically divided into two fixed and variable speed.Variable speed WECS have been many advantages: operation at maximized power capture over a wide range of wind speeds, reduced mechanical stresses imposed on the turbine, and improved power quality compared with fixed speed WECS[5], [6]. The variable speed WECS using the DFIGs are suitable and promising for application in wind energy. The DFIG is particularly employed for high-power applications, due to the lower converters cost and lower power losses [7].The WECS based DFIGs control comprises both the rotor side converter (RSC) combines the technique of MPPT and grid side converter (GSC) controllers so that the RSC controls stator active and reactive powers and the GSC regulates dc-link voltage as well as generates an independent reactive power that is injected into the grid [7], [8], for RSC traditionally the vector control (VC) based on a stator flux orientation [7], [9] using proportional-integral (PI) controllers [10], However, it has some disadvantages, such as its dependence on the machine parameters variation, that its performance largely depends on the tuning of the PI parameters, must be optimally tuned to ensure the system stability within the whole operating range

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“…For this, two main methods have been proposed. One is based on the optimal switching table of the switches' states related to the rotor side converter where the control errors of the stator powers are minimized using the DFIG electrical states [2,16,17]. This method is valid only in the case of the conventional DC/AC converter and requires complicated online calculations, and it displays oscillations when the generator operates near its synchronous speed [15].…”

Section: Introductionmentioning

confidence: 99%

Low-cost sliding mode control of WECS based on DFIG with stability analysis

Djoudi¹,

Chekireb²,

Berkouk³

et al. 2015

Turk J Elec Eng & Comp Sci

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Abstract:The aim of this work is to developing sliding mode control of active and reactive stator powers produced by a wind energy conversion system (WECS), based on doubly fed induction generator (DFIG). A flux estimation model and rotor current sensor are no longer required. The controller is developed from the DFIG nonlinear-coupled model.Moreover, the global stability and the DFIG states' boundedness when our low-cost sliding mode control is applied are established analytically. It is revealed that the (dq) components of the rotor flux remain near their nominal values. Our approach is validated via simulation in the case of a WECS based on DFIG rating at 1.5 MW. The robustness and the performances are verified with the presence of parametric variations and disturbances in the case of an unbalanced grid.

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A Combined Vector and Direct Power Control for DFIG-Based Wind Turbines

Cited by 158 publications

References 14 publications

Real-Time Control of Active and Reactive Power for Doubly Fed Induction Generator (DFIG)-Based Wind Energy Conversion System

Real-Time Control of Active and Reactive Power for Doubly Fed Induction Generator (DFIG)-Based Wind Energy Conversion System

A Complete Modeling and Control for Wind Turbine Based of a Doubly Fed Induction Generator using Direct Power Control

Low-cost sliding mode control of WECS based on DFIG with stability analysis

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