ETQMEngineering Technology and Quality Management2995-31702992-9806Art and Technology10.61369/ETQM.2026090041Article构网型逆变器电应力分析及其主动限流控制https://artdesignp.com/journal/ETQM/4/9/10.61369/ETQM.2026090041李星彤,杨昊,王红斌,王志宽,赵凯2026492026-09-20构网型逆变器在电网故障期间需提供电压和频率支撑。暂态电流冲击和直流母线过电压会对功率器件造成显著的电应力。现有依赖虚拟阻抗或模式切换的限流方法存在局限性。本文以虚拟同步发电机控制的构网型逆变器为研究对象，提出一种基于电流矢量幅值限制的主动限流控制策略。该策略通过调节电压外环输出的d 轴和q 轴电流参考值，在保持相位信息的同时直接减轻器件的电流应力。仿真结果表明，该策略可将故障电流峰值从约1.45标幺值降至约1.14标幺值，并将直流母线电压波动限制在5.1% 以内。该方案是一种简洁、无需额外硬件的工程优化方法，有助于改善电网支撑性能。构网型逆变器,虚拟同步发电机,暂态电应力,主动限流,暂态分析

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