Mechanism Analysis and Closed Loop Simulation of Two-phase Interleaved BUCK Converter

2018 International Conference on Advanced Electronic Materials, Computers and Materials Engineering

材料科学;无线电电子学;计算机科学

Tao, Luo^1 ; Wang, Zhao-Zhao^1 ; Mei, Jian-Wei^1

College of Electrical and Information Engineering, Hubei University of Automotive Technology, Shiyan

442002, China^1

关键词: Closed-loop simulations;    Converter efficiency;    Current ripples;    Current-voltage relationship;    Double closed loop;    Interleaved buck converters;    Mechanism analysis;    Stress condition;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/439/5/052032/pdf
DOI  :  10.1088/1757-899X/439/5/052032

来源: IOP

【 摘 要 】

Interleaved Buck converters can increase power level and improve converter efficiency under the same stress conditions. Based on the two-phase interleaved buck converter model, several working conditions are analyzed in detail. The current ripple is deduced by the current-voltage relationship. Then the loss model is established to calculate and compared the efficiency of the the single phase and two intersecting converter. Finally, the closed-loop simulation analysis is carried out by MATLAB. The experimental results show that the converter combined with the double closed loop algorithm reduces the ripple current and improves the robustness of the system.