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iMOV——一种用于逆变器主导系统的有源浪涌保护装置

iMOV—An Active Surge Protection Device for Inverter-Dominated Systems

语言:

中文摘要

集成半导体开关的并网逆变器在雷击等高能过电压瞬变下极易损坏。传统的金属氧化物压敏电阻(MOV)虽能保护变压器等设备,但难以实现对逆变器敏感功率器件的精确钳位保护。本文提出了一种有源浪涌保护装置(iMOV),旨在提升逆变器在极端电网环境下的可靠性与耐受能力。

English Abstract

A grid-connected inverter integrated with semiconductor switches is significantly more prone to failures during high-energy, overvoltage transients, such as lightning strikes, compared to existing infrastructure in the conventional grid. Although metal oxide varistors (MOVs) provide overvoltage protection to equipment, such as transformers and generators, they are incapable of providing tight clam...
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SunView 深度解读

该技术对阳光电源的核心产品线(组串式及集中式光伏逆变器、PowerTitan/PowerStack储能系统)具有极高的应用价值。逆变器在户外复杂电网环境下,雷击导致的功率器件失效是售后运维的痛点。iMOV技术通过主动钳位保护,能显著提升IGBT/SiC模块在极端瞬态下的生存能力,降低故障率。建议研发团队评估该有源保护拓扑的集成可行性,将其作为下一代高可靠性逆变器及储能PCS的差异化竞争优势,从而降低iSolarCloud平台的运维压力,提升系统全生命周期可靠性。