袁佳歆, 叶丛韬, 陈鹤冲, 洪永贵, 郑元坤. 基于非正交解耦原理的紧凑型高压交流磁饱和限流器研究[J]. 高电压技术, 2023, 49(3): 1172-1183. DOI: 10.13336/j.1003-6520.hve.20220020
引用本文: 袁佳歆, 叶丛韬, 陈鹤冲, 洪永贵, 郑元坤. 基于非正交解耦原理的紧凑型高压交流磁饱和限流器研究[J]. 高电压技术, 2023, 49(3): 1172-1183. DOI: 10.13336/j.1003-6520.hve.20220020
YUAN Jiaxin, YE Congtao, CHEN Hechong, HONG Yonggui, ZHENG Yuankun. Research on Compact High-voltage Saturated Core Fault Current Limiter Based on Non-orthogonal Decoupling Principle[J]. High Voltage Engineering, 2023, 49(3): 1172-1183. DOI: 10.13336/j.1003-6520.hve.20220020
Citation: YUAN Jiaxin, YE Congtao, CHEN Hechong, HONG Yonggui, ZHENG Yuankun. Research on Compact High-voltage Saturated Core Fault Current Limiter Based on Non-orthogonal Decoupling Principle[J]. High Voltage Engineering, 2023, 49(3): 1172-1183. DOI: 10.13336/j.1003-6520.hve.20220020

基于非正交解耦原理的紧凑型高压交流磁饱和限流器研究

Research on Compact High-voltage Saturated Core Fault Current Limiter Based on Non-orthogonal Decoupling Principle

  • 摘要: 磁饱和故障限流器需要外加空心电抗器来提升限流性能,这导致体积和占地面积大,为此提出了一种基于非正交解耦原理的紧凑型高压交流磁饱和限流器(compact saturated core fault current limiter,CSFCL),其具有占地面积小、体积小和限流性能较好的优点。首先介绍了非正交解耦原理,结合传统混合励磁饱和铁芯型故障限流器(hybrid type SFCL,HSFCL)的磁路结构,提出了集成非正交解耦绕组的限流器拓扑,分析了其等效磁路和电路模型,并阐述了限流器的工作机理。然后提出一种带气隙的多段解耦绕组电感计算方法,较传统方法精度提升35%。再对限流器响应时间和限流比进行参数设计计算。接着进行了220 kV CSFCL和HSFCL有限元仿真,验证了理论分析的正确性。最后设计研制出限流器小容量试验模型,并开展了试验研究,对比得到CSFCL限流系统总体体积相较于HSFCL减少47.8%,占地面积减小85.1%。仿真和试验结果均证明了该拓扑的有效性。

     

    Abstract: Saturated core fault current limiter needs an additional air core reactor to improve current limiting performance, resulting in large volume and floor area. Therefore, a compact saturated core fault current limiter (CSFCL) based on non-orthogonal decoupling principle is proposed in this paper, which has the advantages of small floor area, small volume and good current limiting performance. Firstly, the principle of non-orthogonal decoupling is introduced. Combined with the traditional hybrid-biased saturated core fault current limiter (HSFCL), the topology of fault current limiter integrating non-orthogonal decoupling windings is proposed. Its equivalent magnetic circuit and electrical circuit are established to explain the principle of CSFCL. Secondly, a calculation method of multi-stage decoupling winding inductance with air gap is proposed, which improves the accuracy by 35% compared with the traditional method. Then, the response time and current limiting ratio of fault current limiter are designed and calculated. 220 kV CSFCL and HSFCL finite element simulation are carried out to verify the theoretical analysis. Finally, a small capacity fault current limiter prototype is manufactured and the experimental research is carried out. Compared with HSFCL, the overall volume of CSFCL is reduced by 47.8% and the floor area is reduced by 85.1%. The simulation and experimental results verify the effectiveness of the topology.

     

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