基于双端口记忆元件的LCL 滤波优化及应用

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中图分类号：TN713⁃34 文献标识码： A 文章编号：1004⁃373X（2025）12⁃0019⁃08

Abstract：A dual ⁃ port mem ⁃ element ⁃ based LCL filter is proposed to enhance the power quality of a photovoltaic grid ⁃ connected inverter system. The conventional LCL filter realizes passive damping control through capacitor series resistance， which can suppress the resonance spikes at the resonant frequency but may weaken the high⁃frequency filtering effect and lead to non⁃compliance of the grid⁃connected current. In the proposed method， mem⁃element is used to replace some of the elements in the traditional LCL filters， which are characterized by nonvolatile， low power consumption， nanostructures， and high scalability， and are able to achieve nonlinear dynamic adjustment of the filter parameters through the feedback current from the input ports， thus demonstrating significant advantages in terms of minimizing the ripple current， maximizing the harmonic attenuation， and reducing the power loss. Matlab/Simulink simulation model verifies the design method， and the results show that the method is significantly better than the traditional method in suppressing resonance spikes and reducing harmonic content， which proves the potential and effectiveness of the mem⁃element in improving the power quality of three⁃phase PV grid⁃connected inverter systems.

Keywords：mem⁃element; LCL filter; resonance suppression; passive damping control; feedback current; efficiency optimization

0 引 言

在我国的“双碳”目标、电力市场改革和降本增效的背景下，大力发展以风能、太阳能为代表的新能源电力，促进高比例可再生能源并网消纳，将成为我国构建新型电力系统的当务之急[1]。（剩余12880字）