摘要
电子信息技术的发展极大的改进了人们的生产生活方式,具有饱和压降小,载流密度大等许多优点的功率器件IGBT,在超高电压电力传输、新能源的开发利用等方面获得广泛应用。然而其工作在电压高、电流强、状态切换频繁等复杂环境中。这就导致其容易损耗,使模块寿命大大降低。目前,国内外在IGBT功率模块寿命研究领域已经取得了一定的成绩。本文在介绍了IGBT结构的基础上通过建模对其寿命预测进行了研究并具体阐述了功率循环中叠加效应、任务曲线、雨流计数法。
The development of electronic information technology greatly improved people＇ s production and life style, with a low saturation voltage drop, power device IGBT current density and many other advantages, is widely used in the new energy of ultra high voltage power transmission, development and utilization. However, the work in the high voltage, strong current, switching frequent complex environment. This makes it vulnerable to loss, the module greatly reduces life expectancy. At present, research in the field of external IGBT power module life in China has made certain achievements. In this paper, based on the IGBT structure by modeling the life prediction were studied and elaborates the superposition effect, task curve, power cycle rain flow counting method.
出处
《电子测试》
2013年第11期5-7,共3页
Electronic Test
基金
重点项目:ZK10124
