Comparative Study of GFM-grid and GFL-grid in Islanded Operation
Comparative Study of GFM-grid and GFL-grid in Islanded Operation
复制标题
GFM电网与GFL电网孤岛运行对比研究
DOI：
--
复制
发表时间：
2021
期刊：
影响因子：
--
通讯作者：
Masakazu Ito
中科院分区：
文献类型：
--
作者：
S. Verbe;Ryuto Shigenobu;Masakazu Ito
可持续社会的全球活动鼓励电力系统从基于同步发电机的发电转变为通过电力电子转换器接口的可变可再生能源（VRE）发电的大规模集成。这种转换伴随着稳定性问题，例如低最低点和高频率变化率（RoCoF）。为了提高并网逆变器的稳定性，并网跟踪（GFL）和并网逆变器（GFM）控制被设计成像同步发电机一样工作。然而，为了稳定运行的电网形成和电网跟随逆变器，惯性，阻尼和频率恢复控制是必要的。本文评估了孤岛运行中GFM网格和GFL网格的比较。GFL和GFM电网的控制评估VRE通过GFL和GFM逆变器的100%集成。仿真结果表明，GFM网格比GFL网格更稳定。结果还表明，GFM可以保持100%的VRE集成的稳定运行。
Global activity for a sustainable society has encouraged the transformation of the power system from synchronous generator-based generation to a massive integration of variable renewable energy (VRE) generation interfaced by power electronic converters. This transformation comes with stability concerns such as low-Nadir and a high rate of change of frequency (RoCoF). To increase the stability of grid-connected inverters, grid-following (GFL) and grid-forming inverter (GFM) control have been designed to behave like synchronous generators. However, for stable operations of grid forming and grid following inverters, inertia, damping, and frequency restoration control are necessary. This paper evaluates the comparison of the GFM grid and GFL grid in islanded operation. The control of the GFL and GFM grid is evaluated for a 100% integration of VRE through GFL and GFM based inverters. The simulation results show that the GFM-grid is more stable than the GFL-grid. The result also revealed that GFM can maintain a stable operation with 100% integration of VRE.