南方电网技术2018，Vol.12Issue(8)：17-22,6.DOI:10.13648/j.cnki.issn1674-0629.2018.08.003
基于场路耦合法的换流变压器匝间短路故障研究
Research on Interturn Short-Circuit Fault of Converter Transformer Based on Field-Circuit Coupling Method
杨家辉 1王帅兵 1袁耀 1程建伟 1张曦 1刘硕2
作者信息
- 1. 南方电网科学研究院, 广州 510663
- 2. 北京海基科技发展有限责任公司, 北京 100191
- 折叠
摘要
Abstract
A method to simulate the transient process of interturn short-circuit fault of converter transformer based on field-circuit coupling mthod is presented, which can effectively solve the complex electromagnetic problems in the process of short-circuit fault, and obtain the short-circuit current waveforms of line ends and windings in the process of fault. An interturn short circuit case in a converter transformer is used for simulation calculation, the occurrence of short circuit fault is simulated by setting the switch closing time in the external circuit, and the fault current waveform at the line end is obtained by combining the system parameters and the initial phase angle of the fault time. The calculated waveform is basically in agreement with the actual fault recording waveform, which verifies the hypothesis of fault development process and shows that the proposed method is applicable to the transient simulation of transformer interturn short-circuit fault.关键词
场路耦合/有限元法/换流变压器/匝间短路/故障电流Key words
field-circuit coupling/finite element method/converter transformer/interturn short-circuit/fault current分类
信息技术与安全科学引用本文复制引用
杨家辉,王帅兵,袁耀,程建伟,张曦,刘硕..基于场路耦合法的换流变压器匝间短路故障研究[J].南方电网技术,2018,12(8):17-22,6.
