• Home|About JOPS|Editorial Board|Contact us|Chinese
Latest Papers more>>
LI Shan,CUI Sen,CHEN Yan,CHEN Min.Analysis of Parameter Domain for High-frequency Buck Converter in Stable Operation[J].JOURNAL OF POWER SUPPLY,2019,17(2):50-56
Analysis of Parameter Domain for High-frequency Buck Converter in Stable Operation
Received:July 12, 2017  Revised:May 12, 2018
View Full Text  View/Add Comment  Download reader
DOI:10.13234/j.issn.2095-2805.2019.2.50
Keywords:high-frequency Buck converter  nonlinear behavior  chaos  stability
Fund Project:the National Natural Science Foundation of China(cstc51607020); Basic and Frontier Research Program of Chongqing Municipality(cstc2016jcyjA0324); Graduate Innovation Fund of Chongqing University of Technology(YCX201604)
           
AuthorInstitutionEmail
LI Shan School of Electrical and Electronic Engineering, Chongqing University of Technology, Chongqing , China;Chongqing Energy Internet Engineering Technology Research Center, Chongqing , China
CUI Sen School of Electrical and Electronic Engineering, Chongqing University of Technology, Chongqing , China;Chongqing Energy Internet Engineering Technology Research Center, Chongqing , China 511739667@qq.com
CHEN Yan School of Electrical and Electronic Engineering, Chongqing University of Technology, Chongqing , China;Chongqing Energy Internet Engineering Technology Research Center, Chongqing , China
CHEN Min School of Electrical and Electronic Engineering, Chongqing University of Technology, Chongqing , China;Chongqing Energy Internet Engineering Technology Research Center, Chongqing , China
Hits: 586
Download times: 310
Abstract:
      The Buck converter under a high-frequency condition has attracted much attention because of its small size and high efficiency. However, its serious nonlinear behavior due to the improper choice of parameters will affect the stability of the system. In this paper, the nonlinear behavior of the Buck converter under a high-frequency condition is analyzed, and the high-frequency Buck converter under voltage control is studied. Based on the equation of state, an exact discrete iterative mapping model of this converter is established. By the Jacobian matrix, it can be judged that the stability of the system changes with the variation of input voltage as well as the inductance and capacitance of the circuit; the stable operation range of the system is also determined. Finally, the theoretical analysis was verified by experiments. The conclusions of this paper can provide not only reference for the stable operation of the high-frequency Buck converter but also a theoretical basis for the optimization of system parameters and the improvement of control performance.
Close