← 返回
语言:

中文摘要

与已成熟的锁相环(PLL)相比,频率锁定环(FLL)在电力电子应用中尚不成熟。本文探讨了FLL在静止坐标系下的实现难点,分析了其建模、参数整定及性能提升的复杂性,旨在推动FLL在三相电力系统中的应用研究。

English Abstract

Contrary to the phase-locked loop (PLL), which has almost reached a mature stage of development in power and energy applications (particularly in three-phase systems), the frequency-locked loop (FLL) is not a mature technique yet. This is probably because of the implementation of FLLs in the stationary reference frame, which makes their modeling, tuning, and performance enhancement more complicate...
S

SunView 深度解读

频率锁定环(FLL)是提升并网逆变器在弱电网环境下鲁棒性的关键技术。对于阳光电源的组串式和集中式光伏逆变器,以及PowerTitan系列储能变流器,引入高性能FLL可显著改善电网电压畸变或频率波动下的同步稳定性。特别是在构网型(GFM)储能系统开发中,FLL与PLL的协同控制是实现黑启动和弱网支撑的核心。建议研发团队关注FLL在静止坐标系下的优化算法,以提升产品在复杂电网环境下的电能质量与并网可靠性。