Reactive power control in doubly-fed induction generators for wind turbines

Rabelo, B.; Hofmann, W.; Silva, J.L.; Oliveira, Rafael Guilen de; Silva, S.R.

doi:10.1109/pesc.2008.4591908

Cited by 13 publications

(7 citation statements)

References 9 publications

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“…While Type 1 and Type 2 wind turbines are only operated in super-synchronous speed, Type 3 wind turbines which use Doubly-Fed Induction Generators (DFIG) allow the operation in both sub-synchronous and super-synchronous mode. Furthermore, it has independent active and reactive power control capability, which is now actually required to wind generators in most power systems as the penetration level is getting higher [5], [6].…”

Section: Overview Of Wind Turbinesmentioning

confidence: 99%

Wind power technologies from the perspective of system operator

Kang

Park

2012

2012 IEEE Power Electronics and Machines in Wind Applications

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Various wind turbines have been developed and operated in distribution systems and transmission systems. The usage of wind power is now rapidly growing worldwide and some leading countries in wind power technologies have been developing new strategies and enhanced requirements for power system security and electrical power quality. But most of power systems have not prepared for them yet. Given the fact that the renewable energy sources, such as wind power, photovoltaic, fuel cells will be getting more importance for the future energy systems with the benefit of emission trading, most of developing countries and power systems that are not preparing for such movement should make their future plan not only for the power system security, but also for their economic development. In this paper, wind power technologies, which is one of the most promising alternative energy sources, is summarized from the viewpoint of power system operation and control.

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Section: Overview Of Wind Turbinesmentioning

confidence: 99%

Wind power technologies from the perspective of system operator

Kang

Park

2012

2012 IEEE Power Electronics and Machines in Wind Applications

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“…However, current developments in technology make possible the design of operation and control strategies, which will enable wind turbines to provide such grid services. At present the most common technology used is the doubly fed induction generator, whose capacity to control the active and reactive power supply has been widely studied . However, up till now TSOs have asked wind farms to only provide power factor control.…”

Section: Introductionmentioning

confidence: 99%

“…At present the most common technology used is the doubly fed induction generator, whose capacity to control the active and reactive power supply has been widely studied. [3][4][5][6] However, up till now TSOs have asked wind farms to only provide power factor control. However, with the dramatic increase in wind power penetration, various TSOs are developing new operational procedures that require the provision of other types of voltage control by wind generators.…”

Section: Introductionmentioning

confidence: 99%

Economic assessment of voltage and reactive power control provision by wind farms

et al. 2014

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The aim of this paper is to quantify the cost of the provision of voltage control by wind power generation. A methodology for evaluating the economic impact of providing different types of voltage control is proposed. This evaluation examines the increase in costs caused by the change in active power losses due to the provision of wind farms voltage control. These losses are computed for different controllers: (a) wind farms are operated at a fixed power factor, (b) wind farms provide proportional voltage control, and (c) wind farms provide reactive power to minimize power losses. Furthermore, these three possibilities are compared with the option of adding flexible alternating current transmission system devices, which are another alternative for supporting the grid by controlling voltage. The methodology outlined is applied to a real and representative Spanish wind harvesting network. Copyright © 2014 John Wiley & Sons, Ltd.

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“…There are several voltage-related challenges for accommodating large-scale wind power such as voltage fluctuations and the voltage stability under disturbances. In order to address these operation issues in wind power grid, a number of techniques have been developed to enhance the wind power hosting capacity and stability of the power system [1][2][3][4][5], maintain the voltage of the wind power integration area within limits [6][7][8][9][10][11] and maintain an appropriate voltage profile with the help of on-load tap changes (OLTCs) and capacitor/reactor banks [25][26][27]. Furthermore, static methods such as PV curves and continuation power flow (CPF) are used to analyze the risk of voltage instability from the perspective of voltage stability in wind systems.…”

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confidence: 99%

Autonomous Voltage Security Regions to Prevent Cascading Trip Faults in Wind Turbine Generators

Niu

Guo

Sun

et al. 2016

IEEE Trans. Sustain. Energy

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Abstract-Cascading trip faults in large-scale wind power centralized integration areas bring new challenges to the secure operation of power systems. In order to deal with the complexity of voltage security regions and the computation difficulty, this paper proposes an autonomous voltage security region (AVSR) for each wind farm and the point of common coupling (PCC) substation, whose voltage can be controlled in a decoupled way. The computation of the AVSR can be completed using a stepwise search method exchanging voltage and power information between the control center and the wind farms. At each wind farm, an AVSR is determined to guarantee the normal operation of each wind turbine generator (WTG), while in the control center, each region is designed in order to guarantee secure operation both under normal conditions and after an N-1 contingency. A real system in Northern China was used to carry out case studies to verify the effectiveness of the AVSRs proposed, and good performance was demonstrated using the Monte Carlo method.

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Reactive power control in doubly-fed induction generators for wind turbines

Cited by 13 publications

References 9 publications

Wind power technologies from the perspective of system operator

Wind power technologies from the perspective of system operator

Economic assessment of voltage and reactive power control provision by wind farms

Autonomous Voltage Security Regions to Prevent Cascading Trip Faults in Wind Turbine Generators

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