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针对电网阻抗不对称的不平衡故障下逆变器电压支撑控制

Voltage-Support Control of Inverter-Based Resources During Unbalanced Faults Addressing Grid Impedance Asymmetry

作者 Antonio Di Pasquale · Emanuele Fedele · Mario Pagano · Renato Rizzo
期刊 IEEE Transactions on Power Electronics
出版日期 预计 2026年6月
技术分类 系统并网技术
技术标签 低电压穿越LVRT 并网逆变器 构网型GFM 跟网型GFL
相关度评分 ★★★★★ 5.0 / 5.0
关键词 电压支撑 逆变器型电源 不对称故障 电网阻抗不对称 故障穿越 电网稳定性
语言:

中文摘要

电压支撑是逆变器资源在故障期间维持电网稳定性的核心要求。短路故障是极具破坏性的扰动,可能导致设备故障或停电。本文针对电网阻抗不对称情况,研究了逆变器在不平衡故障下的故障穿越(FRT)策略,旨在提升现代电力系统在复杂电网环境下的电压支撑能力与运行可靠性。

English Abstract

Voltage support is an essential requirement for inverter-based resources to maintain the stability and reliability of modern power grids during faults. Short-circuit events are among the most severe disturbances, as they can lead to equipment failure and power outages. Therefore, various fault ride-through (FRT) strategies have been developed to support the grid voltage during such events. As most...
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SunView 深度解读

该研究直接关联阳光电源组串式及集中式光伏逆变器、PowerTitan储能系统在弱电网及复杂电网环境下的并网性能。在电网阻抗不对称的极端工况下,传统的控制策略易导致电压支撑失效。通过引入该文提出的不对称故障下的电压支撑控制算法,可显著提升阳光电源逆变器在弱电网环境下的低电压穿越(LVRT)能力及电网适应性。建议研发团队将其集成至iSolarCloud智能运维平台及逆变器底层控制固件中,特别是在构网型(GFM)储能变流器产品中应用,以增强系统在复杂电网环境下的电压调节精度与稳定性,从而提升产品在海外复杂电网市场的竞争力。