重庆理工大学学报（自然科学版）2025，Vol.39Issue(3)：234-242,9.DOI:10.3969/j.issn.1674-8425(z).2025.02.029
光储隔离型三端口DC-DC变换器线性自抗扰控制
Linear active disturbance rejection control of optical storage isolated three-port DC-DC Converter
摘要
Abstract
The power flow and output voltage of each port of the three-port converter in the DC microgrid are influenced by the strong time variability of the converter and the complexity of the model.To improve the steady-state characteristics and dynamic response of the converter,we propose a linear active disturbance rejection control of the three-port DC-DC converter with optical storage isolation.By establishing a small signal model of an isolated three-port converter,a linear active disturbance rejection controller is introduced into the voltage loop.The linear expansion state observer is employed to estimate the system state in real time,and the transmission power fluctuation caused by working condition mode switching and load switching is regarded as system disturbance and thus compensated.The corresponding phase-shift angle is calculated by the decoupling matrix to realize the control of the three-port converter.Finally,based on a 5 kW experimental prototype,the effectiveness of our control strategy is verified through simulation and experimental analysis.Results show our method improves the stability of the bus load voltage while realizing the cooperative control of port power.关键词
三端口 DC-DC变换器/线性自抗扰/动态性能/功率协调控制Key words
three-port DC-DC converter/linear active disturbance rejection/dynamic performance/power coordinated control分类
动力与电气工程引用本文复制引用
李山,肖冬阳,李海啸,冉卓鑫..光储隔离型三端口DC-DC变换器线性自抗扰控制[J].重庆理工大学学报（自然科学版）,2025,39(3):234-242,9.基金项目
重庆市自然科学基金面上项目(CSTB2022NSCQ-MSX0997) （CSTB2022NSCQ-MSX0997）
重庆市教委青年研究项目(KJQN202201153) （KJQN202201153）
重庆理工大学科研启动基金项目(2021ZDZ013) （2021ZDZ013）
