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电压跌落期间最大化光伏三相逆变器功率能力的控制策略

Control Strategy to Maximize the Power Capability of PV Three-Phase Inverters During Voltage Sags

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中文摘要

在电压跌落期间,光伏并网逆变器需满足低电压穿越(LVRT)要求以维持电网稳定。本文提出了一种LVRT控制策略,旨在充分利用逆变器的功率输出能力,在保障电网可靠性的同时,最大化故障期间的功率注入,提升光伏系统的电网支撑性能。

English Abstract

Under voltage sags, grid-tied photovoltaic inverters should remain connected to the grid according to low-voltage ride-through requirements. During such perturbations, it is interesting to exploit completely the distributed power provisions to contribute to the stability and reliability of the grid. In this sense, this paper proposes a low-voltage ride-through control strategy that maximizes the i...
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SunView 深度解读

该研究直接契合阳光电源组串式及集中式光伏逆变器的核心并网技术需求。随着全球电网对LVRT及故障穿越能力要求的日益严苛,该控制策略能有效提升阳光电源逆变器在弱电网或故障工况下的功率输出能力,增强电网支撑稳定性。建议研发团队将其集成至iSolarCloud智能运维平台及逆变器控制算法中,优化故障期间的电流注入策略,从而提升产品在复杂电网环境下的竞争优势,并为后续构网型(GFM)逆变器的技术储备提供参考。