A review of design consideration for Doubly Fed Induction Generator based wind energy system

Torkaman, Hossein; Keyhani, A.

doi:10.1016/j.epsr.2018.02.012

Cited by 35 publications

(18 citation statements)

References 70 publications

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“…The flux linkage transients of the stator were controlled such that al frequency components could be displayed, thereby resulting in Thevenin's s shown in Figure 3, and a number of equations that were consistent with the ulation programs. A similar mathematical model was deduced in [25]; also the synchronous generator (PMSG) depicted as a control current source was re recently, a review on the design consideration of DFIG in wind energy system duced in [27]. of the internal voltage with respect to time for Thevenin's equivalent circuit was tage of the integration, as in Equation (6a,b).…”

Section: Transient Stability Analysis In Wecsmentioning

confidence: 97%

“…A similar mathematical model was deduced in [25]; also the anent magnet synchronous generator (PMSG) depicted as a control current source was nted in [26]. More recently, a review on the design consideration of DFIG in wind energy system ation was introduced in [27]. he differential of the internal voltage with respect to time for Thevenin's equivalent circuit was ated at every stage of the integration, as in Equation (6a,b).…”

Section: Transient Stability Analysis In Wecsmentioning

confidence: 99%

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Transient Faults in Wind Energy Conversion Systems: Analysis, Modelling Methodologies and Remedies

et al. 2018

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This paper presents an in-depth review of classical and state-of-the-art models for analysing the transient stability in wind energy conversion systems. Various transient simulation models for a number of wind turbine generator (WTG) configurations are introduced, under different disturbances. The mitigation is achieved, by manipulating the generator speed and power electronics control, whereas the protection is implemented using conventional, intelligent or digital relays for the safety of sensitive components, in case of transient fault occurrence. The various control systems in WECS are basically employed to transform and regulate the varying frequency, owing to the stochastic nature of wind speed, to the standard 50-Hz or 60-Hz frequency for coupling to an existing electrical utility grid. It has been observed that the control and protection schemes in wind energy systems are concurrently applied. Transient faults in WECSs are a dominant power quality problem especially in the doubly-fed induction generator (DFIG), and often classified as overcurrent or overvoltage transients. These transients are measured using the transient stability index and analysed using the EMTDC/PSCAD software. In addition, the inertia of the rotating masses of wind turbine generators is often characterized by a transient torque, which generates oscillations in power systems.

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Section: Transient Stability Analysis In Wecsmentioning

confidence: 97%

Section: Transient Stability Analysis In Wecsmentioning

confidence: 99%

Transient Faults in Wind Energy Conversion Systems: Analysis, Modelling Methodologies and Remedies

et al. 2018

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“…Step1: After the start-up of relay, a 20 ms length of data window is used, and the standard sequence and target sequence are acquired according to (1).…”

Section: Protection Implementation Flowmentioning

confidence: 99%

“…Large-scale DFIG wind farms are integrated into power grid through transmission line. [1][2][3] Due to the influence of lowvoltage ride through (LVRT), DFIG exhibits complex fault characteristics, which mainly present as frequency deviation, rich harmonics, unstable impedance, and so forth. 4,5 These fault characteristics are different greatly from that of synchronous generator.…”

Section: Introductionmentioning

confidence: 99%

Novel pilot protection based on time‐domain for transmission line with doubly fed induction generator

Yang

Liu

et al. 2020

Int Trans Electr Energ Syst

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Large-scale doubly fed induction generator (DFIG) wind farms are integrated into power grid through transmission line. Traditional pilot protection as the main protection is widely used in transmission line. However, when traditional pilot protection is applied to transmission line with DFIG, it may appear undesired tripping. Therefore, this work presents a novel pilot protection based on time-domain waveform identification for transmission line with DFIG. The waveform features of the fault currents provided by DFIG and synchronous generator are analyzed. According to the waveform similarity between prefault and postfault currents, calculated separately at DFIG wind farm side and power grid side, the protection principle is established: when internal faults occur, the waveform similarity calculated at DFIG wind farm side is much lower than that calculated at power grid side; when external faults occur, the waveform similarity calculated at both sides are almost the same. A complete protection flow based on proposed principle is designed. Furthermore, a false data detection method is raised for resisting the influence of noise on the performance of proposed protection. Extensive digital simulations are conducted to verify the principle. The test results indicate that the proposed protection can reliably identify the internal faults and external faults, and also has strong ability to withstand the effects of fault resistance, noise, and communication delay. K E Y W O R D S DFIG, Hausdorff distance algorithm, pilot protection, time-domain waveform identification, transmission line List of Symbols and Abbreviations: Z eq , equivalent impedance of upstream network; I, current sampling sequence; I * , normalized I; max{I}, maximum value in I; min{I}, minimum value in I; k, sampling point label of I; X, waveform set X = {x 1 , x 2 , .…x m }; Y, waveform set Y = {y 1 , y 2 , .…y n };

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“…Other advantages include the ability to control the voltage at point of common coupling and power factor control (e.g., to maintain the power factor at unity). Furthermore, the VSWT-based wind generators can produce the maximum power at variable speeds of wind [4].…”

Section: Introductionmentioning

confidence: 99%

On the Contribution of Wind Farms in Automatic Generation Control: Review and New Control Approach

et al. 2018

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Wind farms can contribute to ancillary services to the power system, by advancing and adopting new control techniques in existing, and also in new, wind turbine generator systems. One of the most important aspects of ancillary service related to wind farms is frequency regulation, which is partitioned into inertial response, primary control, and supplementary control or automatic generation control (AGC). The contribution of wind farms for the first two is well addressed in literature; however, the AGC and its associated controls require more attention. In this paper, in the first step, the contribution of wind farms in supplementary/load frequency control of AGC is overviewed. As second step, a fractional order proportional-integral-differential (FOPID) controller is proposed to control the governor speed of wind turbine to contribute to the AGC. The performance of FOPID controller is compared with classic proportional-integral-differential (PID) controller, to demonstrate the efficacy of the proposed control method in the frequency regulation of a two-area power system. Furthermore, the effect of penetration level of wind farms on the load frequency control is analyzed.

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A review of design consideration for Doubly Fed Induction Generator based wind energy system

Cited by 35 publications

References 70 publications

Transient Faults in Wind Energy Conversion Systems: Analysis, Modelling Methodologies and Remedies

Transient Faults in Wind Energy Conversion Systems: Analysis, Modelling Methodologies and Remedies

Novel pilot protection based on time‐domain for transmission line with doubly fed induction generator

On the Contribution of Wind Farms in Automatic Generation Control: Review and New Control Approach

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