Rotor Voltage Dynamics in the Doubly Fed Induction Generator During Grid Faults

Lima, Francisco Kleber A.; Luna, Álvaro; Rodriguez, P.; Watanabe, Edson H.; Blaabjerg, Frede

doi:10.1109/tpel.2009.2025651

Cited by 333 publications

(180 citation statements)

References 40 publications

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“…It should be pointed out that, in this experiment, to avoid the installation of a crowbar, a special control strategy for the rotor-side converter has been implemented. This strategy, which was presented in [42], enables us to cancel out the overcurrents in the rotor and stator windings. Nevertheless, its implementation does not interfere with the comparison between the real response of the generator and its estimated response.…”

Section: Balanced Sagmentioning

confidence: 99%

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

Luna

Lima

Santos

et al. 2011

IEEE Trans. Ind. Electron.

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159

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Abstract-Improving the fault ride-through (FRT) capability of doubly fed induction generators (DFIGs) in wind power applications is a very important challenge for the wind power industry. The mathematical models of such generators enable us to analyze their response under generic conditions. However, their mathematical complexity does not contribute to simplifying the analysis of the system under transient conditions and hence does not help in finding straightforward solutions for enhancing their FRT. This paper presents a simplified model of the DFIG, which has been extracted from the classical fifth-order model, which can accurately estimate the behavior of the system while significantly reducing its complexity. In this paper, the mathematical deduction of this model will be presented, and simulations and experimental results will be shown to demonstrate the accuracy and reliability of the proposed algorithm.

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Section: Balanced Sagmentioning

confidence: 99%

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

Luna

Lima

Santos

et al. 2011

IEEE Trans. Ind. Electron.

Self Cite

159

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“…Thus, the DSOGI-FLL is a filter adapted to grid frequency which outputs can be used to detect the PNS components of the grid voltage. More detailed discussion on DSOGI-FLL can be found in references [7][8]. The control system of the GSC is illustrated in Fig.…”

Section: A Control System Of Gscmentioning

confidence: 99%

Effect of transient flux compensation control on fault ride through of doubly fed induction generator wind turbine

Mäkinen¹,

Tuusa²

2011

REPQJ

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Abstract. The fault ride through (FRT) of doubly fed induction generator (DFIG) is studied in this paper. Two different FRT strategies are compared. First strategy uses only active crowbar to protect the turbine and the second strategy uses transient flux compensation in addition to the crowbar. Simulations are carried out using Matlab/Simulink. The aim of the study is to reveal how the transient flux compensation improves the operation of DFIG during a fault. If the transient flux is removed the DFIG is controllable during a fault and the reactive power injection to the grid can be maximized. This is an important aspect since the latest grid codes insist that wind turbines should be able to inject reactive power during a fault in order to support the depressed grid voltage. Thus, this paper proposes that after a fault it is reasonable to use the current capacity of rotor side converter to remove the transient flux. This leads to better performance of wind turbine, improved power quality and maximized voltage support.

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“…The converter's capacity is relatively small and largely influenced by the status of the grid. Therefore, higher requirements are desired if DFIGs are to be constructed on a large scale and operated in grid-connected mode [6][7][8][9]. Though the PI regulator based vector control is commonly used and can ensure stable operation of DFIGs within certain range, it is not intrinsically robust, and it can be rather difficult to realize the overall stability of the system.…”

Section: Introductionmentioning

confidence: 99%

Passivity-Based Control of a Doubly Fed Induction Generator System under Unbalanced Grid Voltage Conditions

Huang

Wang

2017

Energies

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According to the theory of passivity-based control (PBC), this paper establishes a port-controlled Hamiltonian system with dissipation (PCHD) model for a doubly fed induction generator (DFIG) system under unbalanced grid voltage conditions and proposes a method of interconnection and damping assignment passivity-based control (IDA-PBC) of the system under such conditions. By using this method, the rotor-side converter and grid-side converter can be controlled simultaneously in order to improve fault ride-through capability of the DFIG system. Simulation results indicate that this IDA-PBC strategy effectively suppresses fluctuations of output current and power in the DFIG system during unbalanced grid voltage sag/swell, enhances dynamic performance, and improves the robustness of the system.

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Rotor Voltage Dynamics in the Doubly Fed Induction Generator During Grid Faults

Cited by 333 publications

References 40 publications

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

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

Effect of transient flux compensation control on fault ride through of doubly fed induction generator wind turbine

Passivity-Based Control of a Doubly Fed Induction Generator System under Unbalanced Grid Voltage Conditions

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