一种新型阻抗源AC/AC变换器

A Novel Impedance Source AC / AC Converter

设计并提出了一种具有大范围升降压功能的阻抗源AC/AC新拓扑,分析了电路的基本结构、工作原理,利用伏秒平衡原理推导了电路各部分的电压关系。采用脉冲宽度调制法(PWM)对占空比进行控制来调节输出电压。给出了电路在Matlab/Simulink下的仿真结果。最后在仿真的基础上搭建了基于DSP的实验电路,实验结果验证了该电路的可靠性和可行性。

An AC /AC topology with a wide range of buck-boost function was put forward,its circuit structure and working principle were analyzed. The voltage relation of each part of the circuit is deduced by using voltage second balance principle,the output voltage of the circuit is controlled by pulse width modulation method,the simulation results of the system based on Matlab / Simulink are given,and the experimental circuit based on DSP is built and the experimental results verify the reliability and feasibility of the circuit.