无复位开关的单周控制新方法研究

The study of one cycle control method without reset switch

采用积分复位的单周控制方法在变换器控制领域得到了广泛的研究。但是,由于它采用了积分复位开关,使其变成了一个十分复杂的非线性控制系统,建模和系统设计都非常困难。本文在分析单周控制方法基本原理的基础上,提出了无复位开关的单周控制新方法,以Buck变换器为例,建立了控制系统的小信号模型,通过理论分析和仿真结果证明了该方法的正确性。

One cycle control （OCC） for power electronics converter using reset integrator has been widely studied. But for the use of reset switch, OCC is a complex nonlinear control system, and it is very difficult to model and design. This paper presents a new method for OCC, which has no reset switch, and so is very simple. Small signal model is established. Theoretical analysis is verified by simulation results.