高电压技术2025，Vol.51Issue(1)：40-49,10.DOI:10.13336/j.1003-6520.hve.20241453
数字孪生驱动的变压器振动状态全景感知
Panoramic Perception of Transformer Vibration State Driven by Digital Twin
摘要
Abstract
The comprehensive information perception of power equipment is essential for the high-quality development of new electricity system.A panoramic perception framework for transformer vibration states is proposed in this paper,which is based on digital twin technology.Upon structural fields,the transformer twin model is employed to model the vibration states of cores and windings under the coupled electric fields,magnetic fields,and vibration fields,so as to build the three-dimension vibration twin for the research of the transformer vibration mechanism.With the increase in service time of transformer insulation materials,carrier migration will occur,and leakage flux will increase,leading to additional vibrations.To ensure the fidelity of the transformer twin model,the aging characteristics of insulating paper and oil are considered.The model is updated based on the time-dependent characteristics of the dielectric loss factor tanδ.An S11-M-2 000 kVA oil-immersed transformer is studied as the experimental subject.The tests show the error between the twin data and the measured vibration acceleration is reduced by 6.1%by updating the aging parameters,achieving accu-rate panoramic mapping of the virtual twin model.Furthermore,the virtual-real error as an indicator is used to identify the abnormal health state,offering a new conception for the digital management of power equipment.关键词
数字孪生/变压器全景感知/多物理场建模/老化更新/3维振动场Key words
digital twin/transformer panoramic perception/multi physics field modeling/aging updates/three-dimen-sional vibration field引用本文复制引用
李海英,施佳,宋建成..数字孪生驱动的变压器振动状态全景感知[J].高电压技术,2025,51(1):40-49,10.基金项目
上海市青年科技英才扬帆计划(22YF1429500). Project supported by Shanghai Youth Science and Technology Talent Sailing Plan(22YF1429500). （22YF1429500）
