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含直流母线电压动态的序列分解构网型电力电子设备的小信号稳定性

Small-Signal Stability of Sequence-Decomposed Grid-Forming IBRs With DC-Link Voltage Dynamics

语言:

中文摘要

随着构网型(GFM)逆变器在全球电网中的应用增加,负序电流的精确调节成为关键要求,这促使序列分解模块(SDM)被引入GFM控制架构。本文研究了引入SDM后,结合直流母线电压动态对GFM系统小信号稳定性的影响,为弱电网下电力电子设备的稳定运行提供了理论支撑。

English Abstract

The proliferation of technical specifications for grid-forming (GFM) inverter-based resources (IBRs) is accelerating globally to facilitate their effective integration in power grids. Notably, the precise regulation of negative sequence currents is currently mandated for GFM IBRs, necessitating the incorporation of sequence-decomposed modules (SDMs) into the GFM control architecture. However, SDMs...
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SunView 深度解读

该研究直接服务于阳光电源构网型(GFM)技术路线。随着PowerTitan及组串式逆变器在弱电网和孤岛场景下的应用增多,负序控制与直流母线电压的交互稳定性是提升系统支撑能力的核心。本文提出的稳定性分析方法可指导阳光电源iSolarCloud及PCS控制算法的优化,特别是针对不平衡故障下的负序电流抑制策略,有助于提升PowerTitan在复杂电网环境下的黑启动与电压支撑性能,增强产品在构网型技术领域的竞争壁垒。