峰值电流控制同步开关变换器的分岔控制研究

峰值电流控制同步开关变换器因其优良的性能在工业界获得了广泛的应用。该文建立了峰值电流控制同步开关Boost变换器的离散迭代映射模型,导出了系统首次分岔点和受控电压源强度之间的关系。研究结果表明,受控电压源强度的增加可以影响系统的分岔与混沌状态,实现系统周期轨道的移动。最后通过电路仿真和实验研究验证了通过改变受控电压源的强度可以改变同步开关Boost变换器的稳定性。

Study of Bifurcation Control of Peak Current-Mode Controlled Synchronous Switched Converter

Peak current-mode controlled synchronous switched converter has a wide range of applications in the industrial sector because of its excellent performance. The discrete iterative map model of peak current-mode controlled synchronous switched Boost converter is established in this paper. The relationship between the first bifurcation point and the strength of the controlled voltage source is derived. The research results show that the increase in the strength of controlled voltage source can affect the bifurcation and chaotic state, which realizes the movement of periodic orbits of the system. Finally, the impact on the stability of the synchronous switched Boost converter by changing the strength of controlled voltage source is verified by the circuit simulation and the experimental study.