Centralised power control of wind farm with doubly fed induction generators

Hansen, Alexander; Sørensen, Poul Ejnar; Iov, Florin; Blaabjerg, Frede

doi:10.1016/j.renene.2005.05.011

Cited by 399 publications

(238 citation statements)

References 6 publications

(6 reference statements)

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“…The GSC aims to keep the dc-link voltage constant, regardless of the magnitude and direction of the rotor power and to guarantee converter operation with unity power factor (zero reactive power). This requirement means that the GSC exchanges only active power with the grid, so the transmission of reactive power from the DFIG to the grid is done only through the stator [18,19]. …”

Section: Dfig-based Wind Turbine Modelmentioning

confidence: 99%

“…With the integration of large-scale wind farms into power systems, some researchers have used the control capability of DFIG to damp power system oscillations; however, most studies have focused on damping inter-area low-frequency oscillations [13][14][15][16][17], whereas relatively very few studies have reported on damping SSR. [18] proposed the auxiliary control of a DFIG-based wind farm to damp SSR oscillations in nearby turbogenerators by addition of a supplemental signal at the grid-side converter of the DFIG. However, the auxiliary controller requires the precise measurement of the angular speed deviation of each shaft segment.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

An Optimal Reactive Power Control Strategy for a DFIG-Based Wind Farm to Damp the Sub-Synchronous Oscillation of a Power System

Bin

Wang

et al. 2014

Energies

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This study presents the auxiliary damping control with the reactive power loop on the rotor-side converter of doubly-fed induction generator (DFIG)-based wind farms to depress the sub-synchronous resonance oscillations in nearby turbogenerators. These generators are connected to a series capacitive compensation transmission system. First, the damping effect of the reactive power control of the DFIG-based wind farms was theoretically analyzed, and a transfer function between turbogenerator speed and the output reactive power of the wind farms was introduced to derive the analytical expression of the damping coefficient. The phase range to obtain positive damping was determined. Second, the PID phase compensation parameters of the auxiliary damping controller were optimized by a genetic algorithm to obtain the optimum damping in the entire subsynchronous frequency band. Finally, the validity and effectiveness of the proposed auxiliary damping control were demonstrated on a modified version of the IEEE first benchmark model by time domain simulation analysis with the use of DigSILENT/PowerFactory. Theoretical OPEN ACCESSEnergies 2014, 7 3087 analysis and simulation results show that this derived damping factor expression and the condition of the positive damping can effectively analyze their impact on the system sub-synchronous oscillations, the proposed wind farms reactive power additional damping control strategy can provide the optimal damping effect over the whole sub-synchronous frequency band, and the control effect is better than the active power additional damping control strategy based on the power system stabilizator.

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Section: Dfig-based Wind Turbine Modelmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

An Optimal Reactive Power Control Strategy for a DFIG-Based Wind Farm to Damp the Sub-Synchronous Oscillation of a Power System

Bin

Wang

et al. 2014

Energies

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“…The model for the wind farms with DFIG wind turbines is described in detail in [10]. The DFIG system is essentially a wound rotor induction generator with slip rings, with the stator directly connected to the grid and with the rotor interfaced through a back-to-back partialscale power converter, [11].…”

Section: Power System Modelingmentioning

confidence: 99%

Dynamic security issues in autonomous power systems with increasing wind power penetration

Margaris

Hansen

Sørensen

et al. 2011

Electric Power Systems Research

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Abstract-Dynamic security of autonomous power systems has become a challenge due to increasing levels of wind penetration during the last years. The special features of non-interconnected power systems make security issues rather critical and operation of wind farms as conventional power plants is becoming a necessity as wind turbines replace conventional units in the production side. This paper describes the study case of Rhodes island, in Greece, where rapidly increasing wind penetration has started to impose serious security issues for the immediate future.

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“…It makes following control possible through a series of strategies such as output power regulation by adjustment of pitch angles or start-stop procedure of wind turbines. Similar to conventional units, the performance of the wind turbines control can be evaluated quantitatively by regulating rate and response time (Qiao, et al, 2009, Hansena, et al, 2006, Lubosny, et al, 2007.…”

Section: Apdc System Considering Large-scale Wind Power Integrationmentioning

confidence: 99%

Solution of Active Power Dispatch and Control for Interconnected Power Grids with Large-Scale Wind Power Integration

Gao¹,

Teng²,

Zhang³

et al. 2011

IFAC Proceedings Volumes

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As large-scale wind power has been and will be integrated into power grid, traditional Active Power Dispatch and Control (APDC) system has encountered new challenges. In this paper, the active power dispatch mode of interconnected power grids which is suitable for the large-scale integration of wind power is analyzed firstly. Secondly, it is pointed out that traditional decentralized balance control mode of active power in provincial power grids would not withstand the impact of the large-scale wind power fluctuation. Then, a centralized control mode is proposed in the paper to reallocate all of the generation resources in a wider power grid. Thirdly, the characteristics of the proposed centralized control mode are analyzed from the following aspects: ways of active power balance, mainbodies of active power control, methods of resource allocation, inter-provincial power exchange, security constraints, and data communications. Finally, considering present dispatch system and technical basis in China, a solution is proposed for the active power control for China interconnected power grids. The aim of the proposed solution is to achieve the centralized control mode, and the hierarchical coordination control mode is the transition between present system and the final system.

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Centralised power control of wind farm with doubly fed induction generators

Cited by 399 publications

References 6 publications

An Optimal Reactive Power Control Strategy for a DFIG-Based Wind Farm to Damp the Sub-Synchronous Oscillation of a Power System

An Optimal Reactive Power Control Strategy for a DFIG-Based Wind Farm to Damp the Sub-Synchronous Oscillation of a Power System

Dynamic security issues in autonomous power systems with increasing wind power penetration

Solution of Active Power Dispatch and Control for Interconnected Power Grids with Large-Scale Wind Power Integration

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