Toward Partial Discharge Reduction by Corner Correction in Power Module Layouts
Toward Partial Discharge Reduction by Corner Correction in Power Module Layouts
复制标题
通过电源模块布局中的角校正来减少局部放电
DOI：
10.1109/compel.2018.8459973
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发表时间：
2018
期刊：
影响因子：
--
通讯作者：
A. Mantooth
中科院分区：
文献类型：
--
作者：
Shilpi Mukherjee;Tristan M. Evans;B. Narayanasamy;Quang Le;A. Emon;A. Deshpande;F. Luo;Yarui Peng;S. Pytel;T. Vrotsos;A. Mantooth
随着功率模块中走线之间的间距减小以满足不断增加的功率密度要求，局部放电（PD）开始成为一种威胁，如果不进行检查，可能会导致绝缘击穿。对于高电压应用，局部放电意识是特别重要的，本文介绍了各种走线形状如何发挥关键作用的电气可靠性模块方面的电击穿。必须避免迹线的尖角，这通常是出于机械稳定性的原因，通过倒角来完成的。进行了高电压实验以确认尖角的有害电效应。对于各种迹线间隙，通过完全避免尖角来量化改善的程度。进行模拟以预测电场浓度相对于圆角半径的改善。初步的圆角是在一个名为PowerSynth的独立内部工具中实现的，该工具用于电气和热优化。
As spacing between traces in power modules is reduced to meet increasing power density requirements, partial discharge (PD) starts becoming a threat that can cause insulation breakdown, if not checked. For high voltage applications, PD awareness is particularly important, and this paper describes how various trace shapes play a critical role in the electrical reliability of modules with regard to electrical breakdown. Sharp corners of traces must be avoided, as is generally done for mechanical stability reasons, by filleting the corners. High voltage experiments were performed to confirm the detrimental electrical effects of sharp corners. The degree of improvement by completely avoiding sharp corners was quantified for various trace gaps. Simulations were performed to predict the improvement in terms of E-field concentration with respect to the radius of fillets. Preliminary fillets were implemented in a stand-alone in-house tool called PowerSynth, which is used for electrical and thermal optimization.
DOI：
10.1109/tdei.2010.5539704
发表时间：
2010-08
影响因子：
3.1
作者：
Ningyan Wang;I. Cotton;J. Robertson;S. Follmann;K. Evans;D. Newcombe
通讯作者：
Ningyan Wang;I. Cotton;J. Robertson;S. Follmann;K. Evans;D. Newcombe