Understanding Subsynchronous Oscillations in DFIG-Based Wind Farms Without Series Compensation

Xu, Yanhui; Zhao, Shimeng; Cao, Yuping; Sun, Kai

doi:10.1109/access.2019.2933156

Cited by 18 publications

(12 citation statements)

References 27 publications

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“…The SSCI-CCI in this case was mitigated by coordinated tuning of the controller parameters of the DFIG and STATCOM. More details on the event are reported in [5].…”

Section: Converter-converter Interactionmentioning

confidence: 99%

“…An overview of recent DFIG-SSR ( [20,[26][27][28][29][30]), SSCI-CGI ( [2,4,31])m and CCI [5] events is given in Figure 7.…”

Section: Proposed Reclassification Of Ssomentioning

confidence: 99%

“…Differing from classical subsynchronous oscillations, such as subsynchronous resonance (SSR) or subsynchronous torsional interactions (SSTI), the recently reported SSO resulted from the control interactions of PEID with the grid and is also called subsynchronous controller interaction (SSCI). SSCI is currently used in literature to refer to three fundamentally distinct phenomena: (i) The interaction between a doubly-fed induction generator (DFIG) based wind farm and a series capacitor compensated transmission line [3]; (ii) the interaction between a voltage source converter (VSC) of, e.g., a direct-drive permanent magnet synchronous generator (D-PMSG) and a weak grid [4]; and (iii) the interaction among VSCs [5]. These adverse interactions are electromagnetic in nature and have a faster response than classical SSO [6,7].…”

Section: Introductionmentioning

confidence: 99%

“…Red boxes represent the new SSO categories, solid boxes represent electro-mechanical phenomena and dashed boxes represent electromagnetic phenomena. An overview of recent DFIG-SSR ([20,26-30]), SSCI-CGI ([2,4,31])m and CCI[5] events is given inFigure 7.…”

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confidence: 99%

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Critical Review of Mitigation Solutions for SSO in Modern Transmission Grids

et al. 2020

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The replacement of conventional generation by power electronics-based generation changes the dynamic characteristics of the power system. This results in, among other things, the increased susceptibility to subsynchronous oscillations (SSO). First, this paper discusses three recently emerging SSO phenomena, which arise due to the interactions between (1) a doubly-fed induction generator and a series compensated transmission system; (2) a voltage source converter (VSC) and a weak grid; and (3) nearby VSCs. A fundamental review of these phenomena resulted in the requirement for a reclassification of the existing SSO phenomena. This reclassification is proposed in this work and is based on interacting components identified using participation factor analysis for the distinct phenomena. Second, a critical review of the existing mitigation measures is performed for these phenomena, highlighting the advantages and disadvantages of the solutions. The influence of the wind speed, grid strength, number of wind turbines, and several converter controller parameters are also discussed. To assist equipment manufacturers, control design engineers, and system operators in selecting and designing effective mitigation measures, the existing solutions are categorized in control solutions, hardware solutions, and solutions based on system level coordination. Finally, perspectives on open issues conclude this paper.

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“…The SSCI-CCI in this case was mitigated by coordinated tuning of the controller parameters of the DFIG and STATCOM. More details on the event are reported in [5].…”

Section: Converter-converter Interactionmentioning

confidence: 99%

“…An overview of recent DFIG-SSR ( [20,[26][27][28][29][30]), SSCI-CGI ( [2,4,31])m and CCI [5] events is given in Figure 7.…”

Section: Proposed Reclassification Of Ssomentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

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Critical Review of Mitigation Solutions for SSO in Modern Transmission Grids

et al. 2020

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“…The author of [39] and [40] studied an analysis of the SSR in the DFIG-based wind farms. In addition, [41] presented understanding the SSO of the DFIG-based wind farms. In this reference, it is considered the wind farms without the series compensation.…”

Section: Introductionmentioning

confidence: 99%

Safe Sub Synchronous Oscillations Response for Large DFIG-Based Wind Farms

2020

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This paper presented an accurate analysis of the instability in DFIG-based wind farms due to the use of series compensation and provided maximum power extraction from these farms using the high compensation without the unstable sub-synchronous oscillation occurrence. For this purpose, using modal analysis, it is first shown that the main cause of this instability is low wind speed in the high compensation. This issue causes the series compensated DFIG-based wind farms is unstable due to a sub-synchronous mode. In order to prevent the unstable sub-synchronous oscillation occurrence, a supplementary controller called SSRIPC and DFIG controllers are used. Also, for good dynamic response and proper use of the SSRIPC, an objective function considered based on three factors of minimum damping ratio, overshoot, and settling time of the oscillations. By accurate optimization of the proposed controller using root-locus and PSO algorithm, it is prevented the instability caused by sub-synchronous resonance and sub-synchronous control interaction that are classes of the sub-synchronous oscillations. IEEE SSR first benchmark model and MATLAB/Simulink software are used to validate the performance of the proposed method.

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A review ofSTATCOMcontrol for stability enhancement of power systems with wind/PVpenetration: Existing research and future scope

Sadiq

Wang

Chung

et al. 2021

Int Trans Electr Energ Syst

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In recent years, the development of renewable energy sources (RESs) and their integration with the conventional power network have increased significantly. Due to the power grid transformation brought about by the large penetration of power electronics converter‐based RESs such as wind and solar photovoltaic (PV), the operation and control of the interconnected power system has become a challenging task with respect to sustaining its stability and reliability. Power systems are confronted by several new stability issues because the dynamic behavior of converter‐interfaced renewable sources differs from conventional generation. In this respect, static synchronous compensator (STATCOM), a shunt connected flexible AC transmission system (FACTS), is recognized as a fundamental solution for maintaining power system stability. This paper presents a thorough and state‐of‐the‐art review of STATCOM control in wind‐ and/or PV‐interfaced power systems for enhancing system performance by addressing key stability issues related to rotor angle stability, voltage stability, and resonance stability. A comprehensive analysis of various control techniques of STATCOM based on conventional, adaptive, nonlinear, predictive, robust, and coordinated control and soft computing techniques is provided. Furthermore, the function of the grid‐side converter of the wind/PV plant as a STATCOM is also evaluated. Finally, the shortcomings of existing research are highlighted, current control challenges are presented, and several topics for future research are suggested. This paper provides researchers the opportunity to consider the current state of research and develop new control schemes for STATCOM to further improve the stability of modern power grids.

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Understanding Subsynchronous Oscillations in DFIG-Based Wind Farms Without Series Compensation

Cited by 18 publications

References 27 publications

Critical Review of Mitigation Solutions for SSO in Modern Transmission Grids

Critical Review of Mitigation Solutions for SSO in Modern Transmission Grids

Safe Sub Synchronous Oscillations Response for Large DFIG-Based Wind Farms

A review ofSTATCOMcontrol for stability enhancement of power systems with wind/PVpenetration: Existing research and future scope

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