单相电压型准阻抗源AC-AC变换器

摘要

In order to overcome the shortcoming of the traditional AC⁃AC converter,a new quasi⁃Z⁃source AC⁃AC converter in voltage mode is proposed. In this paper,the fundamental structure and working principle of the circuit are studied,and the pulse width modulation(PWM)method is used for the entire control to change the output voltage. The simulation results of the system circuit based on Matlab/Simulink are given. On the basis of the simulation,the experimental circuit was established with TMS320F2812. The reliability and feasibility of the circuit are verified with experimental results.%为了克服传统AC⁃AC变换器的不足，提出一种新型的电压型准阻抗源AC⁃AC变换电路。研究了电路基本结构、工作原理，采用脉冲宽度调制（PWM）法对电路进行总体控制改变输出电压，给出了Matlab/Simulink下系统电路的仿真结果，最后在仿真的基础上利用TMS320F2812搭建了实验电路。实验结果验证了电路结构的可靠性和可行性。