电力电子电路的传输线计算机仿真模型研究  

Computer Simulation of Power Electronic Circuits Based on Transmission-line Model

作　　者：余明杨[1] 蒋新华[1] 

机构地区：[1]中南大学信息科学与工程学院,湖南长沙410075

出　　处：《计算机仿真》2008年第8期250-252,共3页Computer Simulation

基　　金：国家自然科学基金项目(60674003);国家863高技术基金项目(2006AA11Z230)

摘　　要：准确、稳定的电力电子电路计算机仿真模型是进行电路分析和研究的基础,传输线模型(TLM)是一种基于数值求解微分方程的电力电子电路计算机仿真模型,通过研究电路元件传输线模型的数值计算局部截断误差和整体截断误差,证明了电力电子电路传输线模型数值计算的收敛性和稳定性。与原有的分析电力电子电路暂态过程的离散分析方法相比,这种方法使用简单,物理概念明确,在小步长情况下同样有较好的稳定性,通过Matlab的M文件对模型的仿真结果与经典RK4计算结果的比对,表明了该方法的有效性。An accurate and stable computer simulating model of power electronic circuit is the basis for studying the circuit characteristic while Transmission - line Modeling （TLM） is a kind of numerical simulating algorithm based on numerically solving differential equation. The local truncation error and global truncation error of TLM for basic circuit component are calculated, which prove its convergence and stability. This new proposed method is much easier than the original discrete method which mainly concern the analysis of the converter＇s transient process. It has a better stability under smaller time step and also has a clear physical conception. The effectiveness of the proposed method is verified by comparing the simulating results of TLM method with the traditional RK4 method.

关 键 词：电力电子电路 传输线模型 收敛性 

分 类 号：TM131[电气工程—电工理论与新技术]