电力系统及其自动化学报2017，Vol.29Issue(12)：69-75,7.DOI:10.3969/j.issn.1003-8930.2017.12.011
谐波电流下干式变压器温升及带负载能力的研究
Study on Temperature Rise and Load Capacity of Dry-type Transformer under Harmonic Current
冯政松 1赵莉华 1周卫华 2叶会生 2万代 2齐飞2
作者信息
- 1. 四川大学电气信息学院,成都 610065
- 2. 国网湖南省电力公司电力科学研究院,长沙 410007
- 折叠
摘要
Abstract
Harmonic currents would cause negative effects on a dry type-transformer,such as loss increase,temperature rise,and accelerated thermal aging of insulation materials.In view of the above problems,harmonic loss factor is used to calculate the harmonic loss of a dry-type transformer at different distortion rates,and a three-dimensional model of dry-type transformer is established by using software ANSYS Workbench.The effects of harmonic loss on the tempera-ture rise of the dry-type transformer's internal components at different distortion rates are studied by simulation.By low-ering the load capacity of the dry-type transformer,the additional temperature rise due to harmonic loss can be re-duced,thus the temperature rise of each component of the dry-type transformer will be effectively controlled within the limit range.Moreover,the relationship between current distortion rate and the load capacity of the dry-type transformer is obtained.Calculation and simulation results show that harmonic current can increase the loss values of the dry-type transformer,which can cause the temperature rise of each component and reduce the load capacity.关键词
干式变压器/谐波损耗/负载容量/ANSYS WorkbenchKey words
dry-type transformer/harmonic loss/load capacity/ANSYS Workbench分类
信息技术与安全科学引用本文复制引用
冯政松,赵莉华,周卫华,叶会生,万代,齐飞..谐波电流下干式变压器温升及带负载能力的研究[J].电力系统及其自动化学报,2017,29(12):69-75,7.
