电力系统保护与控制2026，Vol.54Issue(10)：36-46,11.DOI:10.19783/j.cnki.pspc.251246
基于低压侧多级调压的融冰变压器磁-热耦合计算分析
Magnetic-thermal coupling analysis of de-icing transformers based on low-voltage side multi-stage voltage regulation
摘要
Abstract
Icing on distribution lines can easily lead to conductor breakage,equipment burnout,or even tower collapses,posing a serious threat to power supply reliability.To ensure continuity of power supply and enhance de-icing efficiency,a de-icing transformer based on multi-stage voltage regulation on the low-voltage side is proposed,and its multiphysics behavior is analyzed.First,the operating principle and key design parameters of the de-icing transformer are elaborated.Second,a three-dimensional transient electromagnetic field model and a three-dimensional fluid-solid coupled model are constructed.Subsequently,the magnetic field distribution characteristics and loss variation patterns inside the transformer are analyzed,and the temperature rise distribution patterns under conventional power supply mode and parallel power supply-de-icing mode are compared.Finally,transformer temperature rise tests are conducted for validation.The results show that the calculated values agree well with the experimental results,effectively verifying the reliability of the proposed computational methodology and providing new insights and technical support for the innovative optimization of distribution line de-icing technologies.关键词
油浸式变压器/多物理场/损耗密度/温升分布/热点温度Key words
oil-immersed transformer/multiphysics/loss density/temperature rise distribution/hotspot temperature引用本文复制引用
李跃,刘安茳,窦陈,李新皓,刘玉飞,曾世藩..基于低压侧多级调压的融冰变压器磁-热耦合计算分析[J].电力系统保护与控制,2026,54(10):36-46,11.基金项目
This work is supported by the National Science and Technology Project of China(No.2024ZD0800603). 国家科技重大专项资助(2024ZD0800603) （No.2024ZD0800603）
贵州电网科技项目资助(GZKJXM20240136) （GZKJXM20240136）
