V^2-OCC控制Buck变换器

V^2-OCC Controlled Buck Converter

提出一种新型DC/DC控制方法,即V2-OCC控制。首先介绍了其工作原理,然后利用状态空间平均方法建立了V2-OCC控制Buck变换器的小信号模型。在此基础上,对V2-OCC控制和电压控制Buck变换器进行了频域仿真,并对结果进行了对比分析,最后进行了实验研究并给出了相关实验结果。仿真和实验结果表明,V2-OCC控制比电压控制Buck变换器具有更好的抗输入电压扰动能力和更好的动态负载性能。

A kind of new V^2-OCC control method for DC/DC converter is proposed in this paper. Firstly, the operation theory is described, and then, the small signal model of the V^2-OCC controlled Buck converter is derived. Based on this, frequency-domain simulation is performed on voltage controlled and V^2-OCC controlled Buck converter; the simulation results are analysed by contrast. Finally, the experimental results are given. The simulation and experimental results have shown that the V^2-OCC controlled Buck converter has better dynamic load performance and better capability to reduce the influence of the input voltage disturb than the voltage controlled Buck converter.