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在交错式反激逆变器中引入谐波注入以实现主动防孤岛技术

Incorporation of Harmonic Injection in an Interleaved Flyback Inverter for the Implementation of an Active Anti-Islanding Technique

语言:

中文摘要

随着光伏组件功率提升,交错式反激逆变器在微型逆变器(MIC)领域极具吸引力。本文研究了在断续导通模式(DCM)下运行的交错式反激逆变器,通过引入谐波注入技术,实现了一种高效的主动防孤岛保护方案,在保证系统稳定并网的同时,有效提升了微型逆变器的安全性能。

English Abstract

Over recent years, the output power of micro-inverters [module-incorporated inverter (MIC)] is progressively pushed to higher levels, following the current photovoltaic (PV) modules market trends. The interleaved Flyback inverter-under discontinuous conduction mode of operation (DCM)-is an appealing solution for PV applications which are based on MIC technology. This topology provides increased po...
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SunView 深度解读

该技术主要针对微型逆变器(MIC)领域,与阳光电源的户用光伏产品线(如户用组串式逆变器及微逆产品规划)高度相关。交错式反激拓扑在小功率段具有高效率和高功率密度的优势,而文中提出的谐波注入防孤岛技术,无需额外硬件即可实现高可靠性的电网保护,有助于优化阳光电源户用逆变器的控制算法,降低系统成本并提升安全性。建议研发团队关注该控制策略在轻载及弱电网条件下的鲁棒性,以进一步提升产品在复杂户用场景下的并网性能。