湖北电力2025，Vol.49Issue(3)：101-107,7.DOI:10.3969/j.issn.1006-3986.2025.03.012
快速开关型故障限流器在机组并网场景下的应用研究
Research on Application of Fast-Switching Fault Current Limiters in the Scenario of Grid Connection of Units
刘刚 1丁波 1钟思维 1许元震 1刘少飞1
作者信息
- 1. 南京南瑞继保工程技术有限公司,江苏 南京 211102
- 折叠
摘要
Abstract
When the power supply planning of the power grid is overly centralized,the addition of large-scale units and their connection will lead to a significant increase in the short-circuit current level of the existing power grid,which may approach or exceed the rated breaking capacity of circuit breakers,thereby endangering the safe and stable operation of the system.Taking the grid connection project of a newly-built large-scale unit in Bangladesh as an example,this paper proposes a technical solution based on the fast-switching fault current limiter(FCL),first elaborates in detail the parameter design principles of FCL and establishes an electromagnetic transient simulation model,then evaluates the short-circuit current suppression effect and transient recovery voltage(TRV)characteristics,and finally propose a verification principle for the transient recovery voltage rise rate(RRRV)applicable to this scenario.The research results are shown as follows:The peak current of this scheme is reduced to 8.062 kA,with the steady-state effective value reduced to 6.820 kA.While the short-circuit current is effectively controlled,the scheme can ensure the stable operation of the system,and also has significant technical feasibility and economy.Thus,the proposed solution has reference value for the short-circuit current control of similar projects at home and abroad.关键词
快速开关型故障限流器/短路电流/暂态恢复电压/断路器/电磁暂态仿真模型Key words
fast-switching fault current limiter/short-circuit current/transient recovery voltage/circuit breaker/electromagnetic transient simulation models分类
信息技术与安全科学引用本文复制引用
刘刚,丁波,钟思维,许元震,刘少飞..快速开关型故障限流器在机组并网场景下的应用研究[J].湖北电力,2025,49(3):101-107,7.
