A simplified dynamic model of dfig-based wind generation for frequency support control studies




HIGHLIGHTS
  • What: Following this idea, the authors propose a simplified dynamic model for DFIG-WT. 7621 *Corresponding Author: Anjie Jiang Volume 07 Issue 10 October 2024 Available at: www.ijcsrr.org Page No 7617-7625 To validate the simplified model, the authors compare its dynamic performance with the detailed DFIG-WT model in MATLAB Simulink. For each event, the authors compare the rotor speed and output power from the two models.
  • Who: Graham Douglas from the North Carolina State University, Raleigh, NC , have published the research: Open Access proceedings Journal of Physics: Conference series, in the Journal: (JOURNAL) of 10/Oct/2024
  • How: A simplified model is proposed in 10 for DFIG-WT with virtual synchronous control.
SUMMARY

    As one of the most commonly utilized renewable energy resources, wind generation has now become an essential part of modern power system. Several approaches have been proposed by the researchers to enable wind generation to participate in frequency support control. Instead of using conventional maximum power point tracking (MPPT) control, setting the power-speed characteristics below the MPPT curve is commonly used to reserve certain power for supporting the frequency 4. Authors in 5 suggests a new suboptimal power point tracking characteristics for wind generation to follow, where the deloaded power is set differently at low and high wind speeds. *Corresponding Author: Anjie Jiang Volume 07 Issue 10 October 2024 Available at: www.ijcsrr.org Page No 7617-7625 𝒓𝒆𝒇 To test the frequency support controller using the proposed simplified model, the authors build the test system according to the complete system model in Fig 6. Under this event, the authors test the system in three cases: without frequency support control; frequency support with lower emulated inertia and droop; frequency support with higher emulated inertia and droop. The authors propose a simplified dynamic model of DFIG-WT for frequency support control studies. While the model order is reduced to only 3, this model validated for its accuracy on representing the dynamics of a DFIG-WT under the change of power reference and wind speed. The authors tested the effectiveness of this simplified model in the application of study on frequency support control, where the DFIG-WT is controlled to emulate inertial and droop responses. The simplified model with designed controller demonstrates expected and satisfactory improvement on the system frequency response. @@

LAY DEFINITIONS
  • fast: Fast or FAST may refer to: Fast (adjective), high speed or velocity Fast (noun, verb), to practice fasting, abstaining from food and-or water for a certain period of time .
  • Maximum power point tracking: Maximum power point tracking (MPPT) or sometimes just power point tracking (PPT) is a technique used commonly with wind turbines and photovoltaic solar systems to maximize power extraction under all conditions. Although it primarily applies to solar power, the principle applies generally to sources with variable power: for example, optical power transmission and thermophotovoltaics
  • Physics: The study of those aspects of energy and matter in terms of elementary principles and laws. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed)

Licence: cc-by

Site reference: https://ijcsrr.org/wp-content/uploads/2024/10/17-0410-2024.pdf

DOI reference: https://www.doi.org/10.47191/ijcsrr/v7-i10-17

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source https://magazine.sciencepod.net/a-simplified-dynamic-model-of-dfig-based-wind-generation-for-frequency-support-control-studies/

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