电气传动2026，Vol.56Issue(5)：37-44,60,9.DOI:10.19457/j.1001-2095.dqcd26312
基于数字孪生的风电变流器IGBT衰退热特性评估方法研究
Research on IGBT Degradation Degree Acquisition Method of Wind Power Converter Based on Digital Twin
摘要
Abstract
Insulated gate bipolar transistor(IGBT)as an important part of wind power converter,through the high frequency switch to achieve efficient conversion of electrical energy,its long-term complex operation will lead to IGBT performance decline,increase the risk of failure and affect the stability of the system.By analyzing the change trend of junction temperature of IGBT after decay,the decay degree of IGBT in wind power converters in different years of actual operation was tested.PLECS module was used to build IGBT thermal simulation model for doubly-fed wind turbine application scenarios to study the junction temperature characteristics of IGBT under different working conditions.The IGBT thermal model was modified according to the measured decay data.In addition,according to the difference of junction temperature characteristics before and after IGBT recession,the digital twin model framework was established,and the whole process from model establishment to real-time monitoring of IGBT recession degree was designed,and the real-time monitoring of IGBT recession degree was finally realized.关键词
风电变流器/绝缘栅双极型晶体管/衰退监测/数字孪生Key words
wind power converter/insulated gate bipolar transistor(IGBT)/decline monitoring/digital twin分类
信息技术与安全科学引用本文复制引用
李飞,虞孔立,谢友林,尹小平,刘伟..基于数字孪生的风电变流器IGBT衰退热特性评估方法研究[J].电气传动,2026,56(5):37-44,60,9.基金项目
江西龙源科技项目(LYX-2024-23) （LYX-2024-23）
