一种交-直-交变换器的建模与仿真

Modeling and Simulation for an AC/DC/AC Converter

交-直-交变换器有许多优良的性能,本文对传统的交-直-交变换器整流侧进行了改进,在引入开关函数的基础上,分别建立了交-直-交变换器整流侧和逆变侧的数学模型,在控制系统上,对变换器集中采用SPWM控制,最后通过saber软件对系统进行了仿真实验。实验结果证明了建模方法的正确性和控制方式的有效性。

AC - Direct -AC Converter has many excellent properties. This article improves the traditional AC - Straight - rectifier side AC converter, sets up straight - rectifier side AC converter and the inverter side of the mathematical model based on switching function, uses SPWM centralized control for the converter in control system. Finally, conducting system simulation experiment by saber software） experiment results prove the correctness of the modeling method and the effectiveness of control method.