基于加权网络模型的电力电子电路可靠性分析  

Reliability Analysis of Power Electronic Circuits Based on the Weighted Network Model

作　　者：丘东元[1] 刘玉飞[2] 张波[1] 

机构地区：[1]华南理工大学电力学院,广州510640 [2]国电南瑞科技股份有限公司,南京211106

出　　处：《电源学报》2014年第3期58-63,共6页Journal of Power Supply

基　　金：国家自然科学基金项目(50937001;51107044);中央高校基本科研业务重点项目(2012ZZ0023)~~

摘　　要：提出了一种基于加权网络模型的电力电子电路可靠性分析方法,并以UC3842单端反激电路为例进行了说明。首先以元件失效率为权值建立电路的加权网络模型,然后计算该电路加权网络模型的特征参数,验证该电路的复杂网络特性,最后通过量化不同元件失效率变化时对电路可靠性的影响,确定电路中的关键元件,以提出有利于提高电力电子电路可靠性的措施。A reliability analysis method for power electronic circuits based on the weighted network model was presented in this paper, and a Flyback converter base on UC3842 was illustrated as an example. At first, the weighted network model of the Flyback converter was built base on the component failure rate, then the complex network characteristic was confirmed by calculating the model parameters. Finally, the key components in the circuit were defined by quantifying the influence of each component under different failure rate, and the method which is useful to improve the reliability of power electronic circuit was proposed.

关 键 词：加权网络 失效率 电力电子电路 可靠性分析 

分 类 号：TM44[电气工程—电器]