南方电网技术2026，Vol.20Issue(2)：23-29,7.DOI:10.13648/j.cnki.issn1674-0629.2026.02.003
基于电磁互感的并联功率器件双脉冲测试模型
Dual-Pulse Testing Model of Parallel Power Devices Based on Electromagnetic Mutual Inductance
摘要
Abstract
To reduce the impact of insufficient dual-pulse testing caused by uneven current sharing among parallel power devices,a study is conducted on the dual-pulse testing method for parallel power devices.Taking IGBT as an example,the principle of double-pulse testing is investigated,and a theoretical model for the uneven current sharing degree of parallel power devices under modified current loop paths is established and experimentally validated.The results show that modifying the current loop path can reduce the uneven current sharing among parallel power devices,consistent with the theoretical model.At 400 V,the uneven current sharing degree decreases from 43%to 3.2%.Under 1 500 V and at 1.2 and 1.4 times current overloads,the uneven current sharing degree is 2.8%,enabling the successful completion of dual-pulse testing for all power devices and resolving the issue of insufficient testing due to uneven current sharing.Research results provide theoretical and experimental foundations for comprehensive dual-pulse test-ing of multiple parallel power devices.关键词
功率器件/多并联/电磁互感/双脉冲测试/IGBTKey words
power devices/multiple parallel connections/electromagnetic mutual inductance/dual-pulse testing/IGBT分类
信息技术与安全科学引用本文复制引用
任雷浩,李克俭,刘贵,任兴旺,李思,刘敏,张雪松,章雷其,吴启亮..基于电磁互感的并联功率器件双脉冲测试模型[J].南方电网技术,2026,20(2):23-29,7.基金项目
国家重点研发计划资助项目(2022YFB4202200) （2022YFB4202200）
国家电网有限公司科技项目(5211DS230024). Supported by the National Key Research and Development Program(2022YFB4202200) （5211DS230024）
the Science and Technology Project of State Grid Corporation of China(5211DS23 0024). （5211DS23 0024）
