Improved subsynchronous oscillation detection method in a DFIG-based wind farm interfaced with a series-compensated network

Abdeen, Mohamed; Li, Hui; Liu, Jing

doi:10.1016/j.ijepes.2020.105930

Cited by 17 publications

(25 citation statements)

References 22 publications

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“…8. This model has been widely employed in several research papers for SSR studies [2], [13], [20], [21], [29], [30]. This system includes a 100 MW DFIG-based wind farm, a step-up transformer, a series-compensated transmission line, GCSC, and an infinite bus.…”

Section: Power System Modelmentioning

confidence: 99%

Adaptive Fuzzy Supplementary Controller for SSR Damping in a Series-Compensated DFIG-Based Wind Farm

et al. 2023

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Although using a series compensation technique in a long transmission line effectively increases the transmittable power; it may cause a sub-synchronous resonance (SSR) phenomenon. Gatecontrolled series capacitor (GCSC) is an effective method for SSR damping by controlling the turn-off angle. In the previous studies, a constant supplementary damping controller (SDC) was used for controlling the turnoff angle, which can mitigate the SSR phenomenon. However, these methods can not capture the maximum transmittable power at different operating points. In this paper, a fuzzy logic controller (FLC) is proposed to compute the gain of SDC based on the wind speed and the error between the measured and reference line currents for transferring as much power as possible and damping the SSR phenomenon simultaneously. Using the MATLAB/SIMULINK program, the proposed method is tested at different operating points to validate its effectiveness and robustness. Compared to the traditional method (constant SDC), the maximum transmittable power, as well as SSR damping, is achieved in all studied cases by the proposed method (variable SDC).

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Section: Power System Modelmentioning

confidence: 99%

Adaptive Fuzzy Supplementary Controller for SSR Damping in a Series-Compensated DFIG-Based Wind Farm

et al. 2023

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“…In this study, one large DFIG represents a group of wind turbines. This technique has been widely used in several studies [2,6,12,[14][15][16][20][21][22]. In this study, a 100 MW DFIG-based offshore wind farm is connected to an infinite bus through a 161-kV series compensated transmission line [23].…”

Section: Power System Descriptionmentioning

confidence: 99%

A Recent Analytical Approach for Analysis of Sub-Synchronous Resonance in Doubly-Fed Induction Generator-Based Wind Farm

Abdeen

Kamel

et al. 2021

IEEE Access

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Sub-synchronous resonance (SSR) phenomenon occurs due to the interaction between wind turbine generators and series-compensated transmission lines. A doubly-fed induction generator (DFIG) is considered one of the most widely implemented generators in wind energy conversion systems. SSR analysis based on the eigenvalue method is the most important among the used methods. The accuracy of the eigenvalue method depends on the initial values of state variables. Previously, the initial values of the state variables were calculated based on the iterative approach which is suffering from convergence problem, lacking accuracy, and requiring a long computation time. Moreover, many steps and details haven't been provided. Consequently, it is urgent to fill this gap and show how can implement the SSR analysis model in detail. In this paper, a new application of a recent analytical approach is proposed for SSR analysis. All information is provided, and the SSR analysis model of a DFIG-based series compensated wind farm is built step-by-step. In order to prove the effectiveness and accuracy of the proposed method, the eigenvalue analysis based on the proposed and iterative methods is compared with the time-domain simulation results at different wind speeds and variable compensation levels. The results prove that the eigenvalue analysis based on the proposed method is more precise, where it is consistent with the simulation results in all studied cases. MATLAB software is used to validate the results.

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“…The SMA method provides a reduced system matrix containing a desired part of the eigen structure of a system without computing the eigenvalues and eigenvectors of the full system. In [19], an effective, secure, and improved sub-synchronous oscillation detection method based on the voltage signal is proposed, and then, robustness and speed of the improved SSO detection method are tested. In [20], the impact of wind farm operating conditions and DFIG control system parameters on SSCI is analysed in detail, and a new frequency scan analysis approach is proposed for accurate prediction of potential SSCI problems.…”

Section: Introductionmentioning

confidence: 99%

“…FIGURE19 System time responses with and without the proposed damping approach and under step change of wind speed from 8 to 13 m/s at t = 3 s…”

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confidence: 99%

Sub‐synchronous control interaction in power grids including doubly fed induction generator based wind turbines

Azizi

Rahimi

2022

IET Renewable Power Gen

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Integration of doubly‐fed induction generator (DFIG) based wind turbines (WTs), in series‐compensated power grids, may result in a phenomenon known as sub‐synchronous control interaction (SSCI). Indeed, SSCI, created due to interaction between WTs controllers and series‐compensated power grid, may worsen damping of sub‐synchronous resonance (SSR) oscillations. This paper deals with the analytical assessment and mitigation of SSCI phenomenon in series compensated grids comprising of DFIG‐based WTs. In this way, first, theoretical and mathematical expressions and equivalent circuits regarding the SSCI phenomenon and the impacts of the RSC and GSC controls on the SSR oscillations damping are given and then a comprehensive impedance model for the DFIG‐WT at the sub‐synchronous frequency is extracted. Next, the rotor current control is modified, and an efficient approach based on the feedback linearizing technique (FLT), different from approaches presented in the related literature, is presented to mitigate the negative role of the DFIG in SSR frequencies. By mathematical analyses and developing related formula, it is shown that the proposed approach changes the impedance of the rotor circuit to infinity at the SSR frequency. This in turn results in suppression of the SSR oscillations initiated as a result of induction generator effect and SSCI phenomenon.

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Improved subsynchronous oscillation detection method in a DFIG-based wind farm interfaced with a series-compensated network

Cited by 17 publications

References 22 publications

Adaptive Fuzzy Supplementary Controller for SSR Damping in a Series-Compensated DFIG-Based Wind Farm

Adaptive Fuzzy Supplementary Controller for SSR Damping in a Series-Compensated DFIG-Based Wind Farm

A Recent Analytical Approach for Analysis of Sub-Synchronous Resonance in Doubly-Fed Induction Generator-Based Wind Farm

Sub‐synchronous control interaction in power grids including doubly fed induction generator based wind turbines

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