摘要
大规模光伏发电的快速发展是缓解能源危机和降耗去霾的有效手段。而随着光伏并网规模的不断扩大,接入电网条件也愈发苛刻。鉴于逆变器在不同电网条件下,其各部分均受到一定程度的影响,进而会引起系统稳定性问题。本文从从逆变器本身和接入电网两方面来阐述输出滤波器、锁相环、数字延时和弱电网对光伏并网发电系统稳定性的影响。
The rapid development of large-scale photovoltaic power generation is an effective means to alleviate the energy crisis and saving haze. With the continuous expansion of photovoltaic grid-scale,grid access conditions are increasingly demanding. Given the inverter under different grid conditions,its parts are subject to a certain extent,and thus can cause stability problems,this paper to illustrate both from itself and connected to the grid inverter output filter,PLL impact of digital delay and weak grid PV power grid system stability.
出处
《电气开关》
2017年第2期4-6,共3页
Electric Switchgear
关键词
并网稳定性
锁相环
数字延时
弱电网
network stability
phase locked loop
digital delay
weak grids
