中国电机工程学报2024，Vol.44Issue(12)：4869-4877,中插22,10.DOI:10.13334/j.0258-8013.pcsee.230379
基于开关瞬态高频振荡特征的寄生参数提取原理与实现方法研究
Research on the Principle and Implementation Method of Parasitic Parameter Extraction Based on Switching Transient High-frequency Oscillation Characteristics
摘要
Abstract
Parasitic parameter extraction is of great significance for enhancing the operational safety and optimizing the efficiency of power electronics equipment.This paper proposes a parasitic parameter extraction method based on high-frequency oscillation characteristics during switching transient.Compared with the existing method using the voltage and current change slope during switching transients,parameter extraction based on oscillation characteristics has lower requirements on the waveform amplitude measurement and channel sampling synchronization,so it is more robust to issues such as the signal attenuation and latency.In this paper,the oscillation excited by turn-off transient is firstly deduced mathematically in detail,and the frequency-based analysis method is formed.Next,the oscillation behavior for both second-order and fourth-order circuit are discussed.Then,the hardware design,the algorithm evaluation scheme and the error analysis of the extraction kit based on high-speed power devices are given.Finally,the proposed method is carried out with the typical components in the power electronics commutation loop,such as copper busbar,laminated busbar,DC-link capacitor,and semiconductor power module.The test result shows that the proposed method can extract parasitic parameters on the order of 10 nH,and it possess the advantages in high test consistency,simple operation and low extraction error.关键词
寄生参数/瞬态特征/振荡/频谱分析Key words
parasitic parameter/transient characteristic/oscillation/frequency spectrum analysis分类
信息技术与安全科学引用本文复制引用
胡斯登,陈瑞文,杨麒筹,杨仕友..基于开关瞬态高频振荡特征的寄生参数提取原理与实现方法研究[J].中国电机工程学报,2024,44(12):4869-4877,中插22,10.基金项目
国家自然科学基金项目(52177199) （52177199）
浙江省基础公益研究计划项目(LGG22E070013). Project Supported by National Natural Science Foundation of China(52177199) （LGG22E070013）
Zhejiang Provincial Natural Science Foundation of China(LGG22E070013). （LGG22E070013）
