Review of Inertial Control Methods for DFIG-Based Wind Turbines

Wu, Yuan‐Kang; Shu, Wen-Hwa; Hsieh, Ting-Yen; Lee, Tung-Ching

doi:10.18178/ijoee.3.3.174-178

Cited by 7 publications

(6 citation statements)

References 18 publications

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“…For wind speeds higher than nominal, a power statism R p À Á , is defined by equation ( 25) (Wu et al, 2015):…”

Section: Deload Controlmentioning

confidence: 99%

“…This paper reviews, analyses and compares the behavior of five auxiliary control loops with different wind power penetration percentages under the same load variation for primary frequency regulation (Wu et al, 2015). Droop control, Hidden Inertia Emulation control and Inertial-Droop control are based on the temporal change of Acknowledgements I would like to thanks the support provided by the National University of Engineering for the knowledge acquired as a basis for this research.…”

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confidence: 99%

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Comparison of primary frequency control methods for wind turbines based on the doubly fed induction generator

2022

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The penetration of large levels of wind energy leads to technical problems affecting the frequency stability of the power system. Naturally, a wind power plant does not provide an inertial response nor does it regulate the system frequency in case of generation-demand imbalance due to the decoupling between the rotor speed and the grid frequency through the electronic converter (AC/DC/AC). This paper reviews, analysis and compares the performance of four control methods based on the modification of the electromagnetic torque set point and one of the mechanical torque. These methods allow that activation of the wind turbine inertia when a frequency deviation occurs, contributing to the regulation of the system frequency similarly to a conventional synchronous generator. However, wind turbines only change their operating point for a limited time and not permanently.

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“…For wind speeds higher than nominal, a power statism R p À Á , is defined by equation ( 25) (Wu et al, 2015):…”

Section: Deload Controlmentioning

confidence: 99%

mentioning

confidence: 99%

Comparison of primary frequency control methods for wind turbines based on the doubly fed induction generator

2022

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“…In order to improve the inertia control performance, a data-driven inertia control method is proposed in this paper. The DFIG inertia emulation system at time k can be given in a state-space form as (7).…”

Section: Description Of the Optimal Problemmentioning

confidence: 99%

“…Inertia emulation methods have been frequently proposed to support transient inertia responses in previous work, which can be divided into energy storage-based inertia emulation and rotor kinetic energy-based inertia emulation [7,8]. In [9], the authors provide the calculation method of the equivalent virtual inertia time constant reflecting the effective energy storage of the DFIG and put forward the variable parameter virtual inertia emulation method based on DFIG effective energy storage, so as to improve the ability of DFIG to participate in system frequency regulation.…”

Section: Introductionmentioning

confidence: 99%

Data-Driven Virtual Inertia Control Method of Doubly Fed Wind Turbine

Wang

Liu

et al. 2021

Energies

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This paper presents a data-driven virtual inertia control method for doubly fed induction generator (DFIG)-based wind turbine to provide inertia support in the presence of frequency events. The Markov parameters of the system are first obtained by monitoring the grid frequency and system operation state. Then, a data-driven state observer is developed to evaluate the state vector of the optimal controller. Furthermore, the optimal controller of the inertia emulation system is developed through the closed solution of the differential Riccati equation. Moreover, a differential Riccati equation with self-correction capability is developed to enhance the anti-noise ability to reject noise interference in frequency measurement process. Finally, the simulation verification was performed in Matlab/Simulink to validate the effectiveness of the proposed control strategy. Simulation results showed that the proposed virtual inertia controller can adaptively tune control parameters online to provide transient inertia supports for the power grid by releasing the kinetic energy, so as to improve the robustness and anti-interference ability of the control system of the wind power system.

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“…Due to the highly controllable characteristics, the inertia control methods for wind turbines are numerous and complicated. As far as the authors know, some reviews [9,[17][18][19][20][21][22][23] have roundly summarized and analyzed the existing inertia control methods for wind turbines. These reviews are implemented from the perspective of the control of the wind turbine and concern many control details, which are very helpful for realizing the inertia control design of the wind turbine and evaluating the research status, but the control system of wind turbines with inertia control is so complex and different from the traditional synchronous generator that it cannot easily be understand by system operators and engineers with a background in traditional power systems (they are typically very acquainted with the dynamic of the traditional synchronous generator).…”

Section: Introductionmentioning

confidence: 99%

Understanding Inertial Response of Variable-Speed Wind Turbines by Defined Internal Potential Vector

Shang

Yuan

et al. 2016

Energies

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Abstract:With the rapid development of wind power generation, the inertial response of wind turbines (WTs) has become a topic of wide concern recently, due to its influence on grid frequency dynamics and stability. This paper proposes and defines the inner potential to summarize and understand the inertia control methods and inertial response of type-3 and type-4 WTs, which is analogous to typical synchronous generators (SGs), to make it more easy to understand by system operators and engineers with a traditional power system background. The dynamics of the defined inner potential of the wind turbine without any inertia control is different from SGs, thus the electromechanical inertia is completely hidden. The rapid power control loop and synchronization control loop are the major reasons that the WT's inertial response is disenabled. On the basis of the defined inner potential's dynamic, the existing inertia control method for WTs are reviewed and summarized as three approaches, i.e., optimizing the power control or synchronization control or both. At last, the main challenges and issues of these inertia controls are attempted to explain and address.

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Review of Inertial Control Methods for DFIG-Based Wind Turbines

Cited by 7 publications

References 18 publications

Comparison of primary frequency control methods for wind turbines based on the doubly fed induction generator

Comparison of primary frequency control methods for wind turbines based on the doubly fed induction generator

Data-Driven Virtual Inertia Control Method of Doubly Fed Wind Turbine

Understanding Inertial Response of Variable-Speed Wind Turbines by Defined Internal Potential Vector

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