RESEARCH ON WIND TURBINE SPEED RECOVERY STRATEGY FOR MITIGATION SECONDARY FREQUENCY DROP

Liu Jiayi; Yang Dejian; Yan Gangui; Chen Ning; Qian Minhui

doi:10.19912/j.0254-0096.tynxb.2024-1942

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Acta Energiae Solaris Sinica ›› 2026, Vol. 47 ›› Issue (3) : 282-289. DOI: 10.19912/j.0254-0096.tynxb.2024-1942

RESEARCH ON WIND TURBINE SPEED RECOVERY STRATEGY FOR MITIGATION SECONDARY FREQUENCY DROP

Liu Jiayi¹, Yang Dejian¹, Yan Gangui¹, Chen Ning², Qian Minhui²

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Abstract

The traditional PI controller has fixed parameters and weak adaptability in different scenarios, and the speed recovery process is easy to cause the problem of large secondary frequency drop depth. To this end, this paper proposes a wind turbine speed recovery strategy for mitigating secondary frequency drop based on fuzzy PI controll. Firstly, the frequency dynamic response characteristics of power system are analyzed, and the influence of wind turbine on frequency response characteristics in frequency regulation and speed recovery stage is studied. Secondly, a wind turbine speed recovery strategy based on fuzzy PI control is proposed, and fuzzy rules are designed to take into account the rapid recovery of wind turbine speed and the mitigation of secondary frequency drop. Finally, based on Matlab/Simulink simulation software, a system model with wind power is built for simulation analysis. The simulation results verify that the proposed strategy has faster speed recovery characteristics and the feasibility of weakening the secondary frequency drop under the same released rotor kinetic energy.

Key words

doubly-fed wind turbines / frequency response / fuzzy control / rotor speed recovery / secondary frequency drop / rotort kinetic energy

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Liu Jiayi, Yang Dejian, Yan Gangui, Chen Ning, Qian Minhui. RESEARCH ON WIND TURBINE SPEED RECOVERY STRATEGY FOR MITIGATION SECONDARY FREQUENCY DROP[J]. Acta Energiae Solaris Sinica. 2026, 47(3): 282-289 https://doi.org/10.19912/j.0254-0096.tynxb.2024-1942

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