储能变流器宽频带谐振阻尼提升策略

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关键词：有源阻尼器；储能变流器；宽频谐振；弱电网；虚拟阻抗中图分类号：TM464 文献标志码：A 文章编号：2095-8188（2026）01-0049-09DOI： 10.16628/j. cnki.2095-8188.2026.01.007

Wide-Frequency Resonance Damping Enhancement Strategy for Energy Storage Converters

MEI Haihua 1 ，CHEN Nan’， YANG Lukai’，LI Hongde’， ZHU Mingzhe 2 （204 （1.Sunburst Times Energy Technology Co.，Ltd.，Wuxi ，China; 2.School of Electric Power Engineering，Nanjing Institute of Technology，Nanjing ，China）

Abstract：In response to the increasingly prominent issue of wide-frequency resonance in power grids with high penetration of renewable energy integration，a wide-frequencyresonance damping enhancement strategy based onenergystorageconverters is proposed.Anadaptivelyadjustedvirtual impedance is introduced intothe control loop in this strategy，which enables the energy storage converter to efectivelyabsorb the resonance energy induced by otherconverters at the point of common coupling（PCC）while completing the predetermined power dispatch task，thus achieving the effectof wide-frequencyresonance damping.Firstly，acontrol strategy for theenergy storage converterisconstructed，andanimpedance model isestablishedbasedonvirtualsynchronous machines.Secondly，a resonance damping control method based onthe active damping principle is proposed.Finaly，a design method for adaptive adjustmentofvirtual impedanceis proposed，andits impactonthestabilityofotherconverters atthe PCC is analyzed.Experimental resultsshow that the method proposed has goodsuppresion capabilityfor wide-frequency resonance issues.

Key words：active damper；power conversion system；broadband resonance；weak grid；virtual impedance

0 引言

新能源变流器为代表的电力电子设备大量接入，区域电网正逐渐呈现低短路比、低惯性的弱电网特征[1]。（剩余9424字）