Analysis and verification of harmonic interaction between DDWTs based on αβ stationary coordinate system

Han, Pingping; Wang, Longjian; Dou, Sheng; Wang, Lei; Bi, Rui; Yang, Xiangzhen

doi:10.1049/iet-gtd.2019.0708

Cited by 2 publications

(1 citation statement)

References 12 publications

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“…However, the passive damping is used to suppress LCL filter resonance in its control strategy, which will increase active power loss and is not applicable to high-power grid-connected inverters. Han et al (2020) established a wind farm transfer function model and quantitatively analyzed the harmonic interaction among the current control loops of multiple wind turbines based on the RGA. However, the RGA is mainly aimed at the coupling analysis of multivariate control processes.…”

Section: Introductionmentioning

confidence: 99%

Quantitative Analysis of the Interactive Influence for Harmonic Emission in Wind Farms

et al. 2022

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In the process of integrating large-scale wind farms into the power system, the harmonic interaction among wind farms causes potential safe and stable operation threats to the power grid. To effectively control the harmonics of the wind power grid-connected system, quantitative analysis of the harmonic interaction is very necessary and meaningful. Therefore, this paper firstly explains the harmonic interaction among wind farms from the perspective of the primary and secondary emission. We use the concept of harmonic impedance to analyze the mechanism of harmonic interaction and proposed a calculation method for quantitative analysis of the harmonic interaction. Using the calculation method, the influence caused by the wind farm self-impedance, the contact impedance, and Static Var Generator to the harmonic interaction are quantitatively analyzed. Finally, taking multiple wind farms in actual operation as a case, the effectiveness of the method is verified by time domain simulation.

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Section: Introductionmentioning

confidence: 99%

Quantitative Analysis of the Interactive Influence for Harmonic Emission in Wind Farms

et al. 2022

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Propagation characteristics and quantification analysis of harmonic current in large‐scale wind farms

Shi

Chen

Wei

et al. 2022

Energy Science & Engineering

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These days, the harmonic problem of wind power grid‐connected systems is becoming increasingly prominent due to the increase in the number of large‐scale centralized grid‐connected wind farms and the gradual trend of high‐proportion power electronics for source‐grid loads. The harmonic oscillation caused by power electronic equipment provides large‐scale propagating in the system, and the harmonic interaction makes the harmonic propagation more complex. First, the harmonic interaction of the system is simplified into the radiation relationship between the wind farm and each branch to solve the harmonic current propagation problem caused by the interaction in the multiple wind farms. Then, the branch harmonic current propagation analysis method is used to transfer harmonic impedance and generate the branch harmonic current decoupling. Second, a harmonic current propagation coefficient is proposed to quantitatively analyze the relationship between the harmonic current of the wind farm and the branch. Thereby, the quantitative analysis of the propagation characteristics for the wind farm harmonic current in the system branch is obtained. Finally, abundant simulations verify the effectiveness and feasibility of the proposed method.

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Analysis and verification of harmonic interaction between DDWTs based on αβ stationary coordinate system

Cited by 2 publications

References 12 publications

Quantitative Analysis of the Interactive Influence for Harmonic Emission in Wind Farms

Quantitative Analysis of the Interactive Influence for Harmonic Emission in Wind Farms

Propagation characteristics and quantification analysis of harmonic current in large‐scale wind farms

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