一种Buck电路的快速启动方法  

A Fast Startup Method of the Buck Circuit

作　　者：黄艇轩 杨洪欣 朱翔鸥[1] 王守冬 HUANG Tingxuan;YANG Hongxin;ZHU Xiang’ou;WANG Shoudong(College of Electrical and Electronic Engineering,Wenzhou University,Wenzhou,China 325035)

机构地区：[1]温州大学电气与电子工程学院,浙江温州325035

出　　处：《温州大学学报(自然科学版)》2025年第1期17-25,共9页Journal of Wenzhou University(Natural Science Edition)

摘　　要：传统的软启动方式不能满足电感储能型短时大功率输出场合快速启动的要求.为了满足Buck电路快速启动的需要,保证较小的过冲电压,并提高迭代计算启动时间的效率,采用有限次幂级数展开方式计算Buck电路时域超越方程导通和关断时间的初解,利用二元牛顿迭代法迭代计算获得最优的导通和关断时间,从而提高Buck电路的启动速度.经仿真验证,该方法的Buck启动时间约是PD控制的15,且过冲电压较小,能够满足需求.The traditional soft-start method cannot meet the requirement of fast startup in the short-time high-power output of inductive energy storage.In order to meet the need of fast startup of the Buck circuit,ensure small overshoot voltage,and improve the efficiency of iterative calculation of startup time,this paper presents a finite power series expansion method to calculate the initial solutions of on-time and off-time transcendental equations of the Buck circuit time domain.The optimal on-time and off-time are obtained by the binary Newton iterative method to improve the startup speed of the Buck circuit.The simulation results show that the Buck startup time of the proposed method is one fifth of that of the PD control,and the overshoot voltage is small,which can meet the requirements.

关 键 词：BUCK电路 快速启动 修正系数 幂级数展开 

分 类 号：TM46[电气工程—电器]