可再生能源2025，Vol.43Issue(3)：353-360,8.
移相加占空比控制的三端口DC-DC变换器回流功率优化
Phase shift and duty controlled three-port DC-DC converter return power optimization
摘要
Abstract
Series-Resonant Three-Port-Converter(SR-TPC)applies the traditional phase-shifting control strategy when the port voltage mismatch which has the problems of large reflow power and small soft switching range,and this paper will propose a reflux power optimization method based on the phase-shifting plus duty cycle(PWM)control strategy.The complex power model of SR-TPC is given by fundamental analysis method and phasor method,and the optimal control strategy of the converter when the reactive power is zero is given and the optimal control variable is solved through the analysis of the SR-TPC reactive power(reflux power)model under the premise of ensuring the transmission of certain active power.Furthermore,the conditions for realizing soft switching under the optimized control strategy are further analyzed,and the soft switching range under the two control modes is compared.Finally,the Matlab/Simulink simulation results show that compared with the traditional phase shift control strategy,the SR-TPC reflow power under the optimized control strategy has a smaller reflux power,a wider soft switching range,and higher efficiency under the condition of port voltage mismatch.关键词
三端口变换器/移相加占空比控制/回流功率/基波分析法Key words
SR-TPC/phase-shifting plus PWM control/reflux power/fundamental analysis method分类
能源科技引用本文复制引用
康家玉,王佳晨,王业,于淼,肖永超..移相加占空比控制的三端口DC-DC变换器回流功率优化[J].可再生能源,2025,43(3):353-360,8.基金项目
陕西省重点研发计划项目(2021GY-135). （2021GY-135）
