Comparison of LVRT Enhancement for DFIG-Based Wind Turbine Generator with Rotor-Side Control Strategy

Hiremath, Ravikiran; Moger, Tukaram

doi:10.1109/ice348803.2020.9122830

Cited by 8 publications

(3 citation statements)

References 10 publications

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“…Ignoring the reluctance and stator transient process, the relationship between the positivesequence rotor current and stator current can be deduced according to Eqs. ( 20) and (22).…”

Section: Improved Rotor Side Control Strategy Under Asymmetrical Faultsmentioning

confidence: 99%

“…The control strategy of the converter is directly improved to improve the low-voltage traverse performance, but it mainly compensates the positive and negative sequence components. The dynamic compensation fluctuates greatly, and the real-time performance and accuracy are affected [22,23]. At the same time, in order to deal with the influence of the unbalanced voltage of the power grid, the positive sequence current and negative sequence current of the rotor should be inhibited respectively.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Coordinated Rotor-Side Control Strategy for Doubly-Fed Wind Turbine under Symmetrical and Asymmetrical Grid Faults

Yan¹,

Chào²,

Gu³

et al. 2023

Energy Engineering

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In order to solve the problems of rotor overvoltage, overcurrent and DC side voltage rise caused by grid voltage drops, a coordinated control strategy based on symmetrical and asymmetrical low voltage ride through of rotor side converter of the doubly-fed generator is proposed. When the power grid voltage drops symmetrically, the generator approximate equation under steady-state conditions is no longer applicable. Considering the dynamic process of stator current excitation, according to the change of stator flux and the depth of voltage drop, the system can dynamically provide reactive power support for parallel nodes and suppress the rise of DC side voltage and rotor over-current. When the grid voltage drops asymmetrically, the positive and negative sequence components are separated in the rotating coordinate system. The doubly fed generator model is established to suppress the rotor positive sequence current and negative sequence current respectively. At the same time, the output voltage limit of the converter is discussed, and the reference value is adjusted within the allowable output voltage range. In order to adapt to the occurrence of different types of power grid faults and complex operating conditions, a fast switching module of fault type detection and rotor control mode is designed to detect the type of power grid faults and voltage drop depth in real time and switch the rotor side control mode dynamically. Finally, the simulation model of the doubly fed wind turbine is constructed in Matlab/Simulink. The simulation results verify that the proposed control strategy can improve the low-voltage ride through performance of the system when dealing with the symmetrical and asymmetric voltage drop of the power grid and identify the power grid fault type and provide the correct control strategy.

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“…Ignoring the reluctance and stator transient process, the relationship between the positivesequence rotor current and stator current can be deduced according to Eqs. ( 20) and (22).…”

Section: Improved Rotor Side Control Strategy Under Asymmetrical Faultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Coordinated Rotor-Side Control Strategy for Doubly-Fed Wind Turbine under Symmetrical and Asymmetrical Grid Faults

Yan¹,

Chào²,

Gu³

et al. 2023

Energy Engineering

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show abstract

“…) or in supersynchronous mode where the rotational speed is higher than the synchronous speed ( ) [4][5][6].…”

Section: Description Of the Operation Of The Dfig In A Wind Power Systemmentioning

confidence: 99%

Proposal and Simulation of a Doubly Fed Induction Generator for the Coastal Zone of Benin

Philippe

G.²,

Macaire³

2022

PSIJ

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This paper presents the sizing of a Doubly Fed Induction Generator (DFIG) with a power of 690.747 kW for the coastal area of Benin. The sizing of the proposed DFIG starts from the power density of the offshore wind potential of Benin obtained at 80 m at the sea surface to determine the power of the generator. Thanks to the geometrical, electrical and magnetic parameters obtained after sizing, the simulation of the generator operation was done using the finite element analysis (FEA). This simulation is done by running the generator at nominal speed in supersynchronous mode. The results of this simulation show that the powers obtained are close to the expected theoretical values. The curves of the powers and those of the flux densities in the air gap of the generator are presented. Electromagnetic model results are then used to develop the thermal model of the generator. The results of the thermal analysis obtained after simulation by the FEA allowed us to know the temperature values in each region of the DFIG.

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Hybrid CSA-GWO Algorithm-Based Optimal Control Strategy for Efficient Operation of Variable-Speed Wind Generators

Amin

Soliman

Hasanien

et al. 2021

Control and Operation of Grid-Connected Wind Energy Systems

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Comparison of LVRT Enhancement for DFIG-Based Wind Turbine Generator with Rotor-Side Control Strategy

Cited by 8 publications

References 10 publications

Coordinated Rotor-Side Control Strategy for Doubly-Fed Wind Turbine under Symmetrical and Asymmetrical Grid Faults

Coordinated Rotor-Side Control Strategy for Doubly-Fed Wind Turbine under Symmetrical and Asymmetrical Grid Faults

Proposal and Simulation of a Doubly Fed Induction Generator for the Coastal Zone of Benin

Hybrid CSA-GWO Algorithm-Based Optimal Control Strategy for Efficient Operation of Variable-Speed Wind Generators

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