Grid-Forming Control of Wind Turbines for Diode Rectifier Unit Based Offshore Wind Farm Integration

Zhang, Zheren; Jin, Yanqiu; Xu, Zheng

doi:10.1109/tpwrd.2022.3213665

Cited by 24 publications

(3 citation statements)

References 21 publications

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“…However, the parameter stabilization region problem of GFWT, especially the stabilization region problem of wind turbine systems with multiple variable parameters, has rarely been studied. Although the parameter stabilizing region problem of VSC and GFWT [8][9][10][11] have been well studied, the parameter stabilizing region problem of GFWT still needs further research. In addition, small-signal modeling of GFWT for detailed expression is rarely provided.…”

Section: Introductionmentioning

confidence: 99%

Stability Region of Grid-Forming Wind Turbine with Variable Parameters Using Bialternate Sum Matrix Approach

Wang,

Gao,

Jia

et al. 2024

Mathematics

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Although the stability regions of wind turbines in the islanding mode have been widely researched, small-signal modeling of grid-forming wind turbines (GFWTs) in the islanding mode has yet to be explored. In addition, the state-space matrix of the wind turbine system has yet to be fully represented. Therefore, this paper proposes a small-signal modeling of GFWT and a method for identifying the stabilization region of a system with variable parameters. First, small-signal modeling of a GFWT based on virtual synchronous generator control is developed. Second, the bialternate sum matrix approach is used to determine the system stabilization region. The system matrix with multiple variable parameters is first decomposed into the sum of several matrices in this paper. Furthermore, the rotor-side generator control is simplified. It can reduce the dimensionality of the system matrix model. Finally, the simulation shows that the proposed method for determining the stabilization region of the variable system is accurate.

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Section: Introductionmentioning

confidence: 99%

Stability Region of Grid-Forming Wind Turbine with Variable Parameters Using Bialternate Sum Matrix Approach

Wang,

Gao,

Jia

et al. 2024

Mathematics

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“…(2) The global reference angle‐based strategy without PLL is proposed in [17–18], while the global signal is needed for all WTs. (3) In [19–22], the reactive power/frequency droop‐based strategy is proposed, which seems to be preferable due to no PLL or communication link. However, these grid‐forming control strategies are under study and there is still a distance from the practical projects.…”

Section: Introductionmentioning

confidence: 99%

“…(3) In [19][20][21][22], the reactive power/frequency droop-based strategy is proposed, which seems to be preferable due to no PLL or communication link. However, these grid-forming control strategies are under study and there is still a distance from the practical projects.…”

Section: Introductionmentioning

confidence: 99%

Harmonic filtering and fault ride‐through of diode rectifier unit and modular multilevel converter based offshore wind power integration

Jin,

Zhang,

Huang

et al. 2023

IET Renewable Power Gen

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The diode rectifier unit (DRU) is promising in offshore wind power integration due to its reliability and economy. Offshore AC voltage control is the key technology of the DRU‐based scheme. In this paper, a low‐cost offshore wind power integration system based on the DRU and the modular multilevel converter (MMC) in parallel on the rectifier side is proposed. The low‐capacity MMC rectifier is controlled to establish the offshore AC voltage amplitude and frequency, maintain all offshore wind active power transmitted by the DRU, and provide reactive power compensation and AC harmonic filtering for the DRU. Besides, the fault ride‐through strategies of both the offshore fault and the onshore fault are proposed. Moreover, the calculation method of the rated capacity of the MMC rectifier is derived. The time domain simulations of the hybrid system under typical operating conditions are investigated in PSCAD/EMTDC, and the feasibility of the proposed scheme is verified.

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A variable droop coefficient-based reactive power coordinated control strategy in wind farm

Xian,

Wu,

Xie

et al. 2024

Electr Eng

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Grid-Forming Control of Wind Turbines for Diode Rectifier Unit Based Offshore Wind Farm Integration

Cited by 24 publications

References 21 publications

Stability Region of Grid-Forming Wind Turbine with Variable Parameters Using Bialternate Sum Matrix Approach

Stability Region of Grid-Forming Wind Turbine with Variable Parameters Using Bialternate Sum Matrix Approach

Harmonic filtering and fault ride‐through of diode rectifier unit and modular multilevel converter based offshore wind power integration

A variable droop coefficient-based reactive power coordinated control strategy in wind farm

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