Optimized SSSC-Based Mitigation of Sub-synchronous Oscillations in Wind-Integrated Power Networks

Authors

  • Mohammad Reza Rostam Miri * Department of Electrical Engineering, Ayandegan University, Mazandaran, Tonekabon, Iran.

https://doi.org/10.48314/imes.vi.51

Abstract

Sub synchronous resonance (SSR) presents a significant threat to the stability of modern power systems, particularly those integrating doubly fed induction generators (DFIGs) and series compensation devices. The growing penetration of wind energy and the inherent variability of wind power exacerbate SSR phenomena, highlighting the need for robust and effective damping strategies. This study develops a comprehensive approach for mitigating SSR oscillations in power systems incorporating DFIG-based wind farms and Static Synchronous Series Compensators (SSSCs). Detailed dynamic models of wind turbines and DFIGs are formulated, while uncertainties in wind power generation are addressed using a probabilistic point estimation method. The SSSC is employed as the primary damping device, with its control parameters optimally tuned via a Non-Dominated Sorting Genetic Algorithm (NSGA). Simulation results on a benchmark test system reveal that, in the absence of SSSC compensation, sub synchronous oscillations exhibit large amplitudes, driving the system toward instability. Implementation of the proposed SSSC scheme significantly reduces both the amplitude and severity of SSR oscillations, achieving rapid damping and enabling the rotor angle to converge to its pre-fault steady state value. Comparative analyses demonstrate that the proposed SSSC outperforms conventional compensators, including TCSC, by providing faster damping, fewer oscillations, and enhanced overall system stability. The findings confirm that the probabilistic SSSC control strategy delivers superior performance in damping SSR and improving power system stability. Furthermore, the SSSC demonstrates enhanced robustness against disturbances associated with DFIG rotor side converters, achieves more economical stabilization of rotor speed oscillations compared to TCSC, and provides superior reactive power control capabilities.

Keywords:

Sub synchronous Resonance, Doubly Fed Induction Generator (DFIG), Static Synchronous Series Compensator (SSSC), Probabilistic Point Estimation Method, Power System Stability

References

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Published

2026-05-02

Issue

Articles in Press

Section

Articles

How to Cite

Rostam Miri, M. R. (2026). Optimized SSSC-Based Mitigation of Sub-synchronous Oscillations in Wind-Integrated Power Networks. Intelligence Modeling in Electromechanical Systems. https://doi.org/10.48314/imes.vi.51

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