Partial discharge detection in power modules
Partial discharge detection in power modules
复制标题
电源模块局部放电检测
DOI：
10.1109/psec.2002.1022543
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发表时间：
2002
期刊：
影响因子：
--
通讯作者：
S. Dinculescu
中科院分区：
文献类型：
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作者：
F. Breit;E. Dutarde;J. Saiz;T. Lebey;D. Malec;S. Dinculescu
如今，大多数铁路应用都使用混合动力模块。这些IGBT模块由几种介质材料组成，实现芯片封装。由于高电压的存在，以前在较低额定电压下可以忽略的新现象现在必须考虑在内。这就是这种电介质材料堆中可能出现的局部放电的情况。到目前为止，检测此类模块局部放电的唯一测试是应用标准化测试(IEC270)。建议的测试配置只允许测试介质绝缘的一部分。为此，我们提出并讨论了一种判定功率模块是否存在局部放电的新方法。
Today, most railway applications use hybrid power modules. These IGBT modules are constituted of several dielectric materials to achieve chip packaging. Due to the presence of high voltage, new phenomena which could be previously ignored for lower voltage ratings have now to be taken into account. This is the case of partial discharges which may appear in this dielectric material stack. Up to now, the only test carried out to detect partial discharges in such modules is the application of a normalised test (IEC270). The proposed test configuration only allows testing of a part of the dielectric insulation. For this reason, we propose and discuss a novel method for determining partial discharges existence in power modules.