基于狀態(tài)空間平均法的Boost直流變換器建模與仿真分析

摘要：在高性能開關(guān)電源的設(shè)計過程中，要求建立變換器的準(zhǔn)確數(shù)學(xué)模型。但直流變換器一般具有非線性、多模態(tài)、時變的特點，需要使用新型方法對其進行研究。本文針對非隔離式直流變換器的工作情況，采用狀態(tài)空間平均法建立了Boost變換電路的數(shù)學(xué)模型。然后基于Boost變換器的模型，利用Matlab軟件進行仿真分析，驗證模型的正確性。 敘詞：直流變換器 狀態(tài)空間平均法 建模 仿真 Abstract：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. Keyword：DC-DC Converter, Average state space method, Modeling, Simulation