Buck变换器拓扑指数改进算法及脆弱性分析  

The Improved Calculation of Topological Index and Vulnerability Analysis for Buck converter

作　　者：鲍春明[1] 王春芳[1] 

机构地区：[1]青岛大学自动化工程学院,山东青岛266071

出　　处：《电源世界》2014年第12期31-34,共4页The World of Power Supply

摘　　要：基于拓扑指数的概念,考虑到Buck变换器在连续工作模式(CCM)下的开关状态和占空比,提出并计算了Buck变换器的广义拓扑指数,通过对Buck变换器拓扑指数的改进计算,量化了电路拓扑的不同支路以及变换器占空比对变换器脆弱性的影响,进而将脆弱性分析拓展到电力电子电路拓扑的结构性故障的研究。利用Matlab软件仿真分析,此方法的计算结果与仿真结果相符,从而验证了此方法的有效性。Based on the concept of topological index, given the switch state and duty ratio for Buck converter operated in the CCM（Continuous Conduction Mode）, it is proposed that Generalized Topological Index for Buck converter.Through the improvement of the topological index Buck converter is calculated, quantization the different branches of circuit topology and duty cycle on the operating characteristics of the Buck converter. Then extended the vulnerability analysis method to the study on the structural fault of power electronic circuit topology. Using Matlab software simulation and analysis, the calculation results agreed with the simulation results, which verified the effectiveness of the method.

关 键 词：BUCK 变换器 拓扑指数 开关状态 脆弱性分析 

分 类 号：TM46[电气工程—电器]