Enhanced Transient Performance of Wind-Driven PMSG: A Revised Control Structure of Wind-Power Converters

Ali, Muhammad Arif Sharafat

doi:10.4316/aece.2022.02008

Cited by 3 publications

(7 citation statements)

References 25 publications

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“…This induced DC component has the maximum value for ϕΨ 0 = π, and there is no DC component if ϕΨ 0 = 0. By transforming Equation (17)…”

Section: Asymmetrical Grid Faultsmentioning

confidence: 99%

“…A detailed theoretical explanation, designed procedures, mathematical formulations, and analyses of each active crowbar control scheme are provided in this section. A detailed explanation of control systems for RSC and GSC is not included here; however, it can be found in [1,11,17]. The purpose of this study is to investigate the impacts of active crowbars on the transient performance of a wind-driven DFIG system.…”

Section: Proposed Control Schemesmentioning

confidence: 99%

“…(1) improved control structures for DFIGs and (2) enhanced external hardware-based solutions. Numerous modified control schemes have been presented in [7,[9][10][11][12][13][14][15][16][17][18][19][20], such as feedforward current-references control [7], flux linkage control [9], demagnetization control [10], modified controls for RSC [11], flux magnitude and angle control [12], slidingmode control [13,14], negative-sequence current regulation [15], an enhanced reactive power support [16], and an improved control design for wind-power converters [17]. A double impedance-substitution control approach to expanding the LVRT capability of a DFIG was suggested in [18].…”

Section: Introductionmentioning

confidence: 99%

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Improved Transient Performance of a DFIG-Based Wind-Power System Using the Combined Control of Active Crowbars

Ali

2023

Electricity

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A significant electromotive force is induced in the rotor circuit of a doubly fed induction generator (DFIG) due to its high vulnerability to grid faults. Therefore, the system performance must be increased with appropriate control actions that can successfully offset such abnormalities in order to provide consistent and stable operations during grid disturbances. In this regard, this paper presents a solution based on a combination of an energy storage-based crowbar and a rotor-side crowbar that makes the effective transient current and voltage suppression for wind-driven DFIG possible. The core of the solution is its ability to restrict the transient rotor and stator overcurrents and DC-link overvoltages within their prescribed limits, thereby protecting the DFIG and power converters and improving the system’s ability to ride through faults. Further, the capacity of an energy storage device for transient suppression is estimated. The results confirmed that the proposed approach not only kept the transient rotor and stator currents within ±50% of their respective rated values in severe system faults but also limited the DC-link voltage variations under ±15% of its rated value, achieving transient control objectives precisely and maintaining a stable grid connection during the faults.

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“…This induced DC component has the maximum value for ϕΨ 0 = π, and there is no DC component if ϕΨ 0 = 0. By transforming Equation (17)…”

Section: Asymmetrical Grid Faultsmentioning

confidence: 99%

Section: Proposed Control Schemesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Improved Transient Performance of a DFIG-Based Wind-Power System Using the Combined Control of Active Crowbars

Ali

2023

Electricity

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show abstract

“…In (17), Vsp and Vsn represent the amplitudes of the positive-and negative-sequence components of the stator voltage, respectively. Ψsdc is the amplitude of the initial stator dc flux, and its value is determined by the angle (φΨ0) between the Ψsp and Ψsn., The initial dc flux for asymmetrical grid faults differs from symmetrical grid faults in that it relies on the fault type and the time of occurrence.…”

Section: Asymmetrical Grid Faultsmentioning

confidence: 99%

“…These solutions can largely be divided into two subgroups: (1) improved control structures for DFIGs and (2) enhanced external hardware-based solutions. Numerous modified control schemes have been presented in [7,[9][10][11][12][13][14][15][16][17][18][19][20] such as feedforward current-references control [7], flux-linkage control [9], demagnetization control [10], modified controls for RSC [11], flux magnitude and angle control [12], sliding-mode control [13,14], negative-sequence current regulation [15], an enhanced reactive power support [16], and an improved control design for wind-power converters [17]. A double impedancesubstitution control approach to expand the LVRT capability of a DFIG was suggested in [18].…”

Section: Introductionmentioning

confidence: 99%

Improved Transient Performance of DFIG-Based Wind-Power System Using Combined Control of Active Crowbars

Ali

2023

Preprint

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A significant electromotive force is induced in the rotor circuit of a doubly fed induction generator (DFIG) due to its high vulnerability to grid faults. Therefore, the system performance must be increased with appropriate control actions that can successfully offset such abnormalities in order to provide consistent and stable operations during grid disturbances. In this regard, this paper presents a solution based on a combination of an energy storage-based crowbar and a rotor-side crowbar that makes the effective transient current and voltage suppression for wind-driven DFIG possible. The core of the solution is its ability to restrict the transient rotor and stator overcurrents and DC-link overvoltages within their prescribed limits, aiming to protect the DFIG and power converters, and consequently, improve the system’ ability to ride-through faults. Further, the capacity of an energy storage device for transient suppression is estimated. Finally, simulation results show that the proposed approach is effective in achieving transient control objectives precisely and maintaining a stable grid connection during the faults.

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Fault Ride-Through Techniques for Permanent Magnet Synchronous Generator Wind Turbines (PMSG-WTGs): A Systematic Literature Review

et al. 2022

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Global warming and rising energy demands have increased renewable energy (RE) usage globally. Wind energy has become the most technologically advanced renewable energy source. Wind turbines (WTs) must ride through faults to ensure power system stability. On the flip side, permanent magnet synchronous generators (PMSG)-based wind turbine power plants (WTPPs) are susceptible to grid voltage fluctuations and require extra regulations to maintain regular operations. Due to recent changes in grid code standards, it has become vital to explore alternate fault ride-through (FRT) methods to ensure their capabilities. This research will ensure that FRT solutions available via the Web of Science (WoS) database are vetted and compared in hardware retrofitting, internal software control changes, and hybrid techniques. In addition, a bibliometric analysis is provided, which reveals an ever-increasing volume of works dedicated to the topic. After that, a literature study of FRT techniques for PMSG WTs is carried out, demonstrating the evolution of these techniques over time. This paper concludes that additional research is required to enhance FRT capabilities in PMSG wind turbines and that further attention to topics, such as machine learning tools and the combination of FRT and wind power smoothing approaches, should arise in the following years.

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Enhanced Transient Performance of Wind-Driven PMSG: A Revised Control Structure of Wind-Power Converters

Cited by 3 publications

References 25 publications

Improved Transient Performance of a DFIG-Based Wind-Power System Using the Combined Control of Active Crowbars

Improved Transient Performance of a DFIG-Based Wind-Power System Using the Combined Control of Active Crowbars

Improved Transient Performance of DFIG-Based Wind-Power System Using Combined Control of Active Crowbars

Fault Ride-Through Techniques for Permanent Magnet Synchronous Generator Wind Turbines (PMSG-WTGs): A Systematic Literature Review

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