Please use this identifier to cite or link to this item:
Title: An estimation-based solution to weak-grid-induced small-signal stability problems of power converters
Authors: Fang, Jingyang
Yu, Jiale
Zhang, Yifu
Goetz, Stefan M.
Keywords: Engineering::Electrical and electronic engineering
Issue Date: 2020
Source: Fang, J., Yu, J., Zhang, Y. & Goetz, S. M. (2020). An estimation-based solution to weak-grid-induced small-signal stability problems of power converters. IEEE Journal of Emerging and Selected Topics in Power Electronics, 9(4), 4558-4572.
Journal: IEEE Journal of Emerging and Selected Topics in Power Electronics 
Abstract: The large-scale deployment of grid-tied power electronic converters in renewable generation, electric motor drives, and energy storage systems speeds up the global energy transition. However, the stability problems faced by power converters in weak grids, which feature large and variable grid impedances, stand as a serious challenge that has puzzled the power electronic community for more than 15 years. Existing solutions to weak-grid-induced small-signal stability problems modify system and/or control parameters so that stable operation is achieved under a certain condition. However, such solutions are problem and application-specific. Therefore, the solutions can hardly be generalized to various operating conditions or stability problems. As such, this article proposes an estimation-based solution that targets multiple weak-grid-induced small-signal stability problems, particularly for converters with grid-supportive services. The essence of the proposed solution lies in the accurate estimation of real grid information rather than the point-of-common-coupling information. For implementation, Kalman filters serve as an estimator. Subsequently, the estimated information is used to design controllers, such as voltage droop, that allow for stable power conversion. Finally, simulation and experimental results validate the effectiveness and generality of the proposed solution.
ISSN: 2168-6777
DOI: 10.1109/JESTPE.2020.3030720
Schools: School of Electrical and Electronic Engineering 
Rights: © 2020 IEEE. All rights reserved.
Fulltext Permission: none
Fulltext Availability: No Fulltext
Appears in Collections:EEE Journal Articles

Citations 20

Updated on Oct 1, 2023

Web of ScienceTM
Citations 20

Updated on Oct 1, 2023

Page view(s)

Updated on Oct 3, 2023

Google ScholarTM




Items in DR-NTU are protected by copyright, with all rights reserved, unless otherwise indicated.