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

Abdeen, Mohamed; Elbanna, Sayed H. A.; Elgohary, Sara; Mostafa, Hend; Ghaly, Nora; Adel, Nourhan; Elkhwas, Zeinab; Alahmady, Mohamed; Zawbaa, Hossam M.; Kamel, Salah

doi:10.1109/access.2022.3232983

Cited by 7 publications

(3 citation statements)

References 31 publications

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“…The results showed that the threshold value for the current signal is higher than the threshold value for voltage signal because the sub-synchronous component within the current signal is more obvious than the sub-synchronous component within the voltage signal. The SSO was detected after 0.1 s. On the basis of the previous works, the researchers have used different input signals such as current signal [9,21,22], voltage signal [6,10,14,21], active power signal [11], and both the electrical and mechanical signals [7,12,18]. In [6], the SSO detection methods that have been published before 2020 have been summarized in terms of the used approach, input signal, and SSO detection time.…”

Section: Introductionmentioning

confidence: 99%

Fast and accurate method for sub‐synchronous oscillation detection

Abdeen,

El‐Sayed,

Diab

et al. 2023

IET Renewable Power Gen

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Detection of sub‐synchronous oscillation (SSO) accurately within a short time poses a big challenge to avoiding the potential risks of the SSO phenomenon. This paper proposes a novel technique for detecting the SSO phenomenon based on identifying the SSO frequency and magnitude rather than applying fast Fourier transform. The voltage magnitude signal is used as an input signal. The SSO magnitude is identified based on estimating the max value of the voltage magnitude signal, whereas the time corresponding to the zero crossings is defined for calculating the SSO frequency. In order to confirm its effectiveness, the proposed technique is tested with different SSO types (induction generator effect, torsional interaction, and sub‐synchronous control interaction). Moreover, the impact of the series compensation level change on the proposed method performance is investigated. The results prove the effectiveness and the speed of the proposed method in all studied cases. Compared to the traditional methods within a wide range of compensation levels, the proposed technique is fast and accurate. The IEEE first benchmark model is adapted with a doubly‐fed induction generator in the MATLAB program to analyze the performance of the proposed method for detecting the SSO phenomenon.

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Section: Introductionmentioning

confidence: 99%

Fast and accurate method for sub‐synchronous oscillation detection

Abdeen,

El‐Sayed,

Diab

et al. 2023

IET Renewable Power Gen

Self Cite

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“…The results proved the effectiveness and capability of this method for SSR damping at high compensation levels and low wind speeds. In reference [14], a fuzzy logic controller was 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. Since the GCSC is so far from the wind farm location, the use of local signals is more reliable than remote ones to avoid communication issues, ensure continuous operation, and achieve a lower cost.…”

Section: Introductionmentioning

confidence: 99%

Gate‐controlled series capacitor: A new methodology for mitigating sub‐synchronous resonance in a series‐compensated DFIG‐based wind farm

Abdeen

El‐Dabah

Domínguez‐García

et al. 2023

IET Renewable Power Gen

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Series‐compensated transmission lines can lead to a sub‐synchronous resonance (SSR) phenomenon at high compensation levels, where the system lacks stability. Gate‐controlled series capacitor (GCSC) is widely used to damp the SSR. Here, an effective and new methodology for damping the SSR is presented. The proposed method aims to alleviate the SSR phenomenon based on estimating both the frequency and the maximum value of the voltage magnitude signal rather than using the Proportional Integral controller. The appropriate turn‐off angle corresponding to the maximum value of the voltage magnitude signal is applied to the GCSC on the condition that the estimated frequency of the voltage magnitude signal is within the range of the SSR frequency. If the estimated frequency of the voltage magnitude signal is out of the range of the SSR frequency, the steady‐state turn‐off angle (1130) is applied to the GCSC. The capability of the proposed method for damping the SSR under various compensation levels, various wind speeds, and sub‐synchronous control interaction (SSCI) is validated by time‐domain simulation and eigenvalue analysis. Compared to the presented latest method for SSR damping using GCSC, all the obtained results demonstrate that the oscillations converge faster when the proposed method is activated.

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“…Doubly-fed induction generator (DFIG) has been widely used in the field of wind power generation because of its small converter capacity and variable speed constant frequency power generation [1]. However, a large number of static Var compensators and series compensation capacitors are connected to the power grid in the process of UHV power transmission, resulting in sub-synchronous oscillation (SSO) and power quality decline [2], [3], [4]. Power grid SSO will affect the stability of wind power generation, which will lead to wind…”

Section: Introductionmentioning

confidence: 99%

Multi-Disturbance Factors Analysis and Suppression Strategy of Sub-Synchronous Oscillation on DFIG Grid-Side Converter

et al. 2023

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This paper focuses on the power grid oscillation of grid-side converter (GSC) in doubly-fed induction generator (DFIG) caused by grid sub-synchronous oscillation (SSO), and designs a measure to improve the output power quality of GSC. Firstly, the influence mechanism of multipath disturbance of GSC under SSO is sorted out, and the disturbance factors and action modes are clarified. Secondly, the influence of SSO on the output estimation of phase-locked loop (PLL) in the control strategy and power calculation process is analyzed. Furthermore, the mathematical model of GSC output power considering the influence of PLL is established. At the same time, the key factors of SSO for GSC power oscillation suppression strategy are determined by analyzing the oscillation suppression effect of quasi-resonant controller when SSO amplitude, frequency and phase change. Based on the above theoretical analysis and research, the resonant controller is used to eliminate the estimation error of the PLL; at the same time, an adaptive algorithm is designed according to the mechanism analysis of SSO characteristic changes to improve the fixed resonant frequency of the quasi-resonant controller, and a DFIG-GSC sub-synchronous power oscillation suppression strategy based on the adaptive quasi-resonant controller is proposed, thus eliminating the influence of SSO on the multipath disturbance of GSC and improving the power quality of its output. Finally, the effectiveness of the proposed suppression strategy is verified by simulation and experimental results.INDEX TERMS Power quality, doubly-fed induction generator (DFIG), grid side converter (GSC), phase locked loop (PLL), sub-synchronous oscillation frequency change, adaptive quasi-resonant controller.

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

Cited by 7 publications

References 31 publications

Fast and accurate method for sub‐synchronous oscillation detection

Fast and accurate method for sub‐synchronous oscillation detection

Gate‐controlled series capacitor: A new methodology for mitigating sub‐synchronous resonance in a series‐compensated DFIG‐based wind farm

Multi-Disturbance Factors Analysis and Suppression Strategy of Sub-Synchronous Oscillation on DFIG Grid-Side Converter

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