电源学报2024，Vol.22Issue(4)：173-181,9.DOI:10.13234/j.issn.2095-2805.2024.4.173
不同故障状态下电网形成变换器的故障穿越控制
Fault Ride-through Control of Grid-forming Converter in Different Fault States
摘要
Abstract
The grid-forming(GFM)converter is one of the main components of high-permeability power electronic equipment,and its fault ride-through(FRT)capability is an important basis for ensuring the stable operation of a power system with a high degree of power electronics.On this basis,an FRT strategy for GFM converter is proposed,which not only considers the hardware constraints(i.e.,current constraints)of the converter,but also can keep it running in protected mode under symmetric and asymmetric faults.First,the FRT-related problem of the GFM converter is analyzed in detail.Then,an appropriate FRT model and the corresponding control method are established.Finally,the effectiveness of the proposed method was verified by power-hardware-in-the-loop simulation and experiment.Results show that compared with a grid-following converter,the proposed control method can guarantee the instantaneous injection of reactive current when the GFM converter fails to prevent the overcurrent problem,and the GFM converter can still operate fault-tolerant under serious fault conditions.关键词
电网形成变换器/电流限制/故障穿越/硬件在环Key words
Grid-forming(GFM)converter/current constraint/fault ride-through(FRT)/hardware-in-the-loop分类
信息技术与安全科学引用本文复制引用
陶军,钟鸣,阿敏夫,孙弘毅,莫瑞..不同故障状态下电网形成变换器的故障穿越控制[J].电源学报,2024,22(4):173-181,9.基金项目
内蒙古自治区科技攻关资助项目(2019GG373)This work is supported by Science and Technology Research Project of Inner Mongolia Autonomous Region under the grant 2019GG373 （2019GG373）
