广东电力2017，Vol.30Issue(4)：74-79,114,7.DOI:10.3969/j.issn.1007-290X.2017.04.013
油浸式电力变压器短路状态下油流涌动特性的 多物理场数值模拟
Multi-physics Field Numerical Simulation on Oil Flow Surge Characteristic of the Oil-immersed Transformer Under Short-circuit State
摘要
Abstract
This paper uses multiple computer software to perform numerical simulation on 3D transient electromagnetic field, flowing field and structure stress field of 110 kV oil-immersed three-phase transformer under short-circuit state.It firstly adopts ANSYS Maxwell 3D software to establish a geometrical model for the transformer, then performs mesh generation for structure and fluid calculation by using ANSYS ICEM CFD Blocking and ANSYS Fluent software, and finally adopts ANSYS Maxwell 3D software to work out distribution of electromagnetic field, electromagnetic force on winding, oil flow surge speed and distribution law of pressure.It draws conclusions that pressure peak value of the gas relay occurs at the time of the most intensive low-pressure winding motion but the pressure goes to stable after short-circuit current effect finishes.Secondly, oil flow motion is sharply at the initial stage of short-circuit impact which may cause security risk to the transformer but at the late stage, motion speed will obviously reduce.关键词
油浸式电力变压器/短路/瞬态/结构/流动场Key words
oil-immersed transformer/short-circuit/transient state/structure/flowing field分类
信息技术与安全科学引用本文复制引用
李德波,钟俊,郝庆凯,冯永新,周杰联..油浸式电力变压器短路状态下油流涌动特性的 多物理场数值模拟[J].广东电力,2017,30(4):74-79,114,7.基金项目
中国南方电网有限责任公司科技项目(GDKJQQ20153004) （GDKJQQ20153004）
