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Research on the Impacts of the Inertia and Droop Control Gains from a Variable-Speed Wind Turbine Generator on the Frequency Response

Dejian Yang1, Yien Xu1, Tong Zhu1, Yang Wang1, Qiuhan Cao1, Yuang Ma1, Enshu Jin2, Xinsong Zhang1,*, Haochen Sun3,*
1 School of Electrical Engineering, Nantong University, Nantong, China
2 School of Electrical Engineering, Northeast Electric Power University, Jilin, China
3 Transcell Technology, Nanjing, China
* Corresponding Authors: Xinsong Zhang. Email: ; Haochen Sun. Email:
(This article belongs to this Special Issue: Wind Energy Development and Utilization)

Energy Engineering 2022, 119(2), 539-554. https://doi.org/10.32604/ee.2022.015133

Received 24 November 2020; Accepted 12 April 2021; Issue published 24 January 2022

Abstract

System frequency must be kept very close to its nominal range to ensure the stability of an electric power grid. Excessive system frequency variations are able to result in load shedding, frequency instability, and even generator damage. With increasing wind power penetration, there is rising concern about the reduction in inertia response and primary frequency control in the electric power grid. Converter-based wind generation is capable of providing inertia response and primary frequency response; nevertheless, the primary frequency and inertia responses of wind generation are different from those of conventional synchronous fleets; it is not completely understood how the primary frequency and inertia responses affect the given system under various disturbances and available kinetic energy levels. Simulations are used to investigate the influences of inertia and droop control strategies on the dynamic frequency responses, particularly the index of the second frequency drop under various disturbance and wind conditions. A quantitative analysis provides insight into setting of inertia and droop control coefficients for various wind and disturbance conditions to facilitate adequate dynamic frequency responses during frequency events.

Keywords

Wind power; inertia control; droop control; frequency stability

Cite This Article

Yang, D., Xu, Y., Zhu, T., Wang, Y., Cao, Q. et al. (2022). Research on the Impacts of the Inertia and Droop Control Gains from a Variable-Speed Wind Turbine Generator on the Frequency Response. Energy Engineering, 119(2), 539–554.



This work is licensed under a Creative Commons Attribution 4.0 International License , which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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