Modelling and Predictive Control of a Buck-Boost DC-DC Converter  

作　　者：Gianluca Gatto Ignazio Marongiu Aldo Perfetto Alessandro Serpi Ivan Luigi Spano 

机构地区：[1]Department of Electrical and Electronic Engineering, University ofCagliari, Cagliari 09123, Italy [2]Department of Electrical Engineering, University "Federico H" of Naples, Naples 80138, Italy

出　　处：《Journal of Energy and Power Engineering》2012年第8期1276-1283,共8页能源与动力工程（美国大卫英文）

摘　　要：A predictive current control algorithm for the Buck-Boost DC-DC converter is presented in this paper. The continuous time model of the system is properly introduced, then, by imposing a proper PWM modulation pattern, its discrete time model is achieved. This last one is successfully employed in determining the steady state locus of the Buck-Boost converter, both in CCM （continuous conduction mode） and DCM （discontinuous conduction mode）. A novel continuous time equivalent circuit of the converter is introduced too, with the aim of determining a ripple free representation of the state variables of the system, over both transient and steady state operation. Then, a predictive current control algorithm, suitable in both CCM and DCM, is developed and properly checked by means of computer simulations. The corresponding results have highlighted the effectiveness of the proposed modelling and of the predictive control algorithm, both in CCM and DCM.

关 键 词：Equivalent circuits DC-DC power conversion predictive control. 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置] TM42[自动化与计算机技术—控制科学与工程]