Zhu Xuanyi, Huang Xuanrui, Xiao Xi. RESEARCH ON CONTROL STRATEGY OF HYBRID ENERGY STORAGE SYSTEM FOR WIND-WAVE COMBINED POWER GENERATION SYSTEM[J]. 2025, 46(3): 54-62.
Zhu Xuanyi, Huang Xuanrui, Xiao Xi. RESEARCH ON CONTROL STRATEGY OF HYBRID ENERGY STORAGE SYSTEM FOR WIND-WAVE COMBINED POWER GENERATION SYSTEM[J]. 2025, 46(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
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.
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references
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