RESEARCH ON CONTROL STRATEGY OF HYBRID ENERGY STORAGE SYSTEM FOR WIND-WAVE COMBINED POWER GENERATION SYSTEM

Zhu Xuanyi; Huang Xuanrui; Xiao Xi

doi:10.19912/j.0254-0096.tynxb.2023-1944

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Acta Energiae Solaris Sinica ›› 2025, Vol. 46 ›› Issue (3) : 54-62. DOI: 10.19912/j.0254-0096.tynxb.2023-1944

RESEARCH ON CONTROL STRATEGY OF HYBRID ENERGY STORAGE SYSTEM FOR WIND-WAVE COMBINED POWER GENERATION SYSTEM

Zhu Xuanyi, Huang Xuanrui, Xiao Xi

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Abstract

Aiming at the typical scenario of applying a hybrid energy storage system （HESS） to smooth the power fluctuation of a wind-wave combined power generation system, the second-order low-pass filtering method is used to initially distribute the power of supercapacitor and lithium battery, and a new power distribution control topology including power correction and energy management modules is proposed.The power correction module mainly focuses on stabilizing the DC bus voltage, compensating the energy storage internal resistance loss and power limiting requirements, and dynamically adjusting the initial power distribution value of HESS to enhance the stable operation capability of energy storage; the energy management module adopts a variable filtering time constant method, which can be exempted from the stagnation of the state of charge（SOC）, and avoids overcharge and overdischarge of supercapacitors by setting energy buffer zones. Finally, a simulation model is built in Matlab/Simulink, and the results verify the technical rationality of the control strategy designed in this paper.

Key words

energy storage / electric power distribution / energy management / state of charge / wind-wave combined power generation

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Zhu Xuanyi, Huang Xuanrui, Xiao Xi. RESEARCH ON CONTROL STRATEGY OF HYBRID ENERGY STORAGE SYSTEM FOR WIND-WAVE COMBINED POWER GENERATION SYSTEM[J]. Acta Energiae Solaris Sinica. 2025, 46(3): 54-62 https://doi.org/10.19912/j.0254-0096.tynxb.2023-1944

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