基于状态空间平均法的Boost直流变换器建模与仿真分析

Modeling and Simulation Analyses of Boost Converter Based on State-space Averaging Principle

在高性能开关电源的设计过程中,要求建立变换器的准确数学模型。但直流变换器一般具有非线性、多模态、时变的特点,需要使用新型方法对其进行研究。本文针对非隔离式直流变换器的工作情况,采用状态空间平均法建立了Boost变换电路的数学模型。然后基于Boost变换器的模型,利用Matlab软件进行仿真分析,验证模型的正确性。

In the design process of high performance switching power supply, calls for the establishment of an accurate mathematical model. But the DC-DC converter usually takes on character of nonlinear, multi-modal, time-varying, need to use the new method to study it. This paper aimed at the situation of the non isolated DC-DC converter work, using the average state space method to establish the mathematical model of Boost transform circuit. Then based on Boost converter model, using Matlab software to simulate and analyze and verify the correctness of the model.