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Title: Damping torque coefficient analysis of PMSG-based WT with VSG control considering wind turbine dynamics
Authors: Qu, Tong
Li, Yujun
Yuan, Xiaotian
Du, Zhengchun
Keywords: Engineering::Electrical and electronic engineering
Issue Date: 2022
Source: Qu, T., Li, Y., Yuan, X. & Du, Z. (2022). Damping torque coefficient analysis of PMSG-based WT with VSG control considering wind turbine dynamics. IET Generation, Transmission and Distribution, 12444-.
Journal: IET Generation, Transmission and Distribution
Abstract: This paper expands the damping torque coefficient analysis (DTCA) for studying the small-signal stability of permanent magnet synchronous generator (PMSG)-based wind turbine (WT) under virtual synchronous generator (VSG) control with consideration of WT dynamics. Firstly, the typical VSG is implemented in the grid-side voltage source converter (GSVSC), which enables selfsynchronization without phase-locked loop (PLL). The maximum power point track (MPPT) algorithms are utilized to give the power reference for VSG. Then, the corresponding inertia and damping support can be provided by the kinetic energy of PMSG. Based on the established model, the DTCA is analytically conducted to not only reveal the key factors that influence the WT stability but also provide guidance for parameter tuning. As a result, it is important to find that the WT dynamics impair the damping and even lead to system instability. Moreover, the minimum value of VSG damping control parameter is analytically given to ensure the system stability under any load below the rated wind speed. Finally, the case studies considering one single PMSG connected to a large grid with and without inclusion of WT dynamics are performed and compared to demonstrate the accuracy of the proposed model and evaluate the applications of DTCA.
ISSN: 1751-8687
DOI: 10.1049/gtd2.12444
Schools: School of Electrical and Electronic Engineering 
Rights: © 2022 The Authors. IET Generation, Transmission & Distribution published by John Wiley & Sons Ltd on behalf of The Institution of Engineering and Technology. This is an open access article under the terms of the Creative Commons Attribution-NonCommercial License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited and is not used for commercial purposes.
Fulltext Permission: open
Fulltext Availability: With Fulltext
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