NDLI: Sub-synchronous oscillations in wind farms – an overview study of mechanisms and damping methods

Content Provider	IET Digital Library
Author	Shi, Tong Nayanasiri, Dulika Li, Yunwei (Ryan)
Abstract	Sub-synchronous oscillation (SSO) causes significant damage and performance degradation in wind farms (WFs). The root causes and mitigation methods of SSO have been identified as a result of many studies. An overview that analysed and summarised those findings in different perspectives helps optimise the existing solutions and to find alternative approaches to mitigate SSO. Therefore, a comprehensive overview of the SSO analysing techniques, mechanisms, and mitigation strategies are presented in this study. This overview is focused on the WFs based on type 3 and 4 wind turbine generators and the WFs connected to high-voltage DC transmission systems. The dominant SSO modes in each application have been presented along with the identified root cause, influencing factors, and the mitigation methods. Besides that, a comprehensive comparison between the existing mitigation strategies is presented to identify the alternative approaches and improvements. The identified improved methods are presented along with the time and frequency domain simulation results to validate their applicability. Finally, an insight into the future direction of this research is presented along with the conclusions.
Starting Page	3974
Ending Page	3988
Page Count	15
ISSN	17521416
Volume Number	14
e-ISSN	17521424
Issue Number	Issue 19, Dec (2020)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-rpg.2020.0479
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-rpg/14/19
Journal	IET Renewable Power Generation
Publisher Date	2020-12-18
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	A.C. Machine D.C. Transmission Damping Damping Method Frequency Domain Analysis Frequency Domain Simulation High-voltage DC Transmission System HVDC Power Transmission Identified Root Cause Influencing Factors Mathematical Analysis Mitigation Method Oscillation Performance Degradation Power Generation Reliability Reliability SSO Analysing Technique SSO Mode Sub-synchronous Oscillation Time Domain Analysis Time Domain Simulation TurboGenerator Wind Farm Wind Power Plant Wind Turbine Wind Turbine Generator
Content Type	Text
Resource Type	Article
Subject	Renewable Energy, Sustainability and the Environment

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