Analysis of DFIG Interval Oscillation Based on Second-Order Sliding Film Damping Control

Qi Liu, Jiahui Wu (), Haiyun Wang, Hua Zhang and Jian Yang
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Qi Liu: College of Electrical Engineering, Xinjiang University, Urumqi 830047, China
Jiahui Wu: College of Electrical Engineering, Xinjiang University, Urumqi 830047, China
Haiyun Wang: College of Electrical Engineering, Xinjiang University, Urumqi 830047, China
Hua Zhang: Xinjiang Branch, CGN New Energy Investment (Shenzhen) Co., Ltd., Urumqi 830011, China
Jian Yang: Xinjiang Branch, CGN New Energy Investment (Shenzhen) Co., Ltd., Urumqi 830011, China

Energies, 2023, vol. 16, issue 7, 1-17

Abstract: This paper takes advantage of the high control flexibility and fast response time of the interfacing power electronic converter for doubly fed wind turbine grid-connected systems to address inter-area oscillations caused by inadequate system damping in power systems. A reactive-power-coordinated damping controller for a doubly fed induction generator (DFIG) is proposed, and it makes use of second-order sliding-mode technology. The suggested controller improves damping performance by controlling the reactive power. It provides benefits such as a quicker damping rate and resilience to modeling errors and parameter changes. The simulation results indicate the system’s improved performance in inter-area oscillation damping and the robustness of the suggested control technique over a broad range of functional areas.

Keywords: doubly fed induction generator; sliding-mode technology; reactive power damping controller (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2023
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