ADAPTIVE SUBSYNCHRONOUS OSCILLATION SUPPRESSION STRATEGY OF DOUBLE-FED WIND POWER GENERATOR BASED ON FUZZY CONTROL

Liu Qihui; Tian Ruohan; Jia Ruiyuan; Hong Chenwei; Tang Haiyan

doi:10.19912/j.0254-0096.tynxb.2022-0405

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Acta Energiae Solaris Sinica ›› 2023, Vol. 44 ›› Issue (7) : 392-401. DOI: 10.19912/j.0254-0096.tynxb.2022-0405

ADAPTIVE SUBSYNCHRONOUS OSCILLATION SUPPRESSION STRATEGY OF DOUBLE-FED WIND POWER GENERATOR BASED ON FUZZY CONTROL

Liu Qihui¹, Tian Ruohan¹, Jia Ruiyuan¹, Hong Chenwei², Tang Haiyan³

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Abstract

The sub-synchronous control interaction （SSCI） between the doubly-fed induction generator （DFIG） and the series com-pensation capacitor （SSC） of the transmission line is the main reason for the sub-synchronous oscillation （SSO） of the dou-bly-fed wind power AC grid-connected system. By establishing the impedance model of the doubly-fed wind power integration system with SSC, this paper analyzes the influence of different control parameters of the wind turbine on SSO, and proposes an additional damping control method that is equivalent to the adjustment of current loop parameters and take into account the fundamental frequency control perfor-mance. In order to improve the adaptability and robustness to the oscillation mode migration, this paper further combines real-time frequency measurement with fuzzy control to form an adaptive suppression strategy that can automatically adjust additional damping control parameters according to the oscillation frequency. Finally, based on the Matlab/Simulink simulation platform, the correctness and effectiveness of the adaptive suppression strategy proposed in this paper are verified.

Key words

wind turbines / sub-synchronous oscillation（SSO） / fuzzy control / additional damping control / realtime frequency measurement / adaptive suppression

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Liu Qihui, Tian Ruohan, Jia Ruiyuan, Hong Chenwei, Tang Haiyan. ADAPTIVE SUBSYNCHRONOUS OSCILLATION SUPPRESSION STRATEGY OF DOUBLE-FED WIND POWER GENERATOR BASED ON FUZZY CONTROL[J]. Acta Energiae Solaris Sinica. 2023, 44(7): 392-401 https://doi.org/10.19912/j.0254-0096.tynxb.2022-0405

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