NDLI: Analysis and mitigation of subsynchronous resonance based on integral control for DFIG-based wind farm

Content Provider	IET Digital Library
Author	Meng, Yongqing Pan, Xixi Ma, Hao Li, Kaikai Yu, Jianyang Wang, Xiuli
Abstract	Series capacitor compensation technology has been widely used in long-distance wind power transmission, which can improve the power transmission capacity and enhance the static stability of the power system. However, adding a series capacitor in the line may present a potential risk of subsynchronous resonance (SSR) to the system. This study focuses on the SSR caused by induction generator effect of the doubly-fed induction generator-based wind farms. The SSR phenomenon of wind power system is researched by the impedance analysis method. A mitigation strategy of adding a virtual inductance based on integral control is proposed for enhancing the system stability and alleviating the SSR. It has clear and intuitive physical concept, which is beneficial to system integration and provides a simpler and more economic method for mitigating SSR. Moreover, the principle and process of controller design are elaborated. Moreover, the time-domain simulation is carried out to prove the effectiveness of the proposed control strategy under different operating conditions considering various compensation levels and wind speeds. Finally, the suppression effects of the virtual inductance in rotor-side converter and grid-side converter are compared.
Starting Page	1718
Ending Page	1725
Page Count	8
ISSN	17518687
Volume Number	13
e-ISSN	17518695
Issue Number	Issue 9, May (2019)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-gtd/13/9
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-gtd.2018.6566
Journal	IET Generation, Transmission & Distribution
Publisher Date	2019-01-29
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Asynchronous Generator Asynchronous Machine Clear Concept Compensation Levels Control of Electric Power System Control Strategy Controller Design DFIG-based Wind Farm Impedance Analysis Method Induction Generator Effect Induction Generator-based Wind Farms Integral Control Intuitive Physical Concept Long-distance Wind Power Transmission Mitigating SSR Mitigation Strategy More Economic Method Other Power Apparatus And Electric Machine Potential Risk Power Capacitor Power Generation Control Power Grid Power System Control Power Transmission Capacity Rotors Series Capacitor Compensation Technology Simpler Method SSR Phenomenon Static Stability Subsynchronous Resonance System Integration System Stability Virtual Inductance Wind Power Plant Wind Power System Wind Speed
Content Type	Text
Resource Type	Article
Subject	Control and Systems Engineering Energy Engineering and Power Technology Electrical and Electronic Engineering

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Analysis and mitigation of subsynchronous resonance based on integral control for DFIG-based wind farm

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