电源学报2024，Vol.22Issue(2)：73-80,8.DOI:10.13234/j.issn.2095-2805.2024.2.73
基于逆系统解耦的三电平Buck变换器反步滑模控制
Backstepping Sliding Mode Control of Three-level Buck Converter Based on Inverse System Decoupling
摘要
Abstract
Multi-level converters are widely applied in DC microgrids because of their capability to reduce the voltage stress on switches and the volumes of filtering inductors and filtering capacitors.Since the flying-capacitance voltage and output voltage of a three-level Buck converter are coupled,the converter is a nonlinear system with strong coupling of multi-input and multi-output.To solve this problem,a decoupled backstepping sliding mode control method for inverse system is proposed in this paper.The inverse system method is used to decouple the output voltage control and flying-capacitance voltage control,and the backstepping sliding mode control method is used to ensure the stability and robustness of output voltage.The flying-capacitance voltage is balanced at 1/2 of the input voltage by the state feed-back control.Simulation and experimental results show that the proposed control strategy can achieve satisfying steady-state and dynamic characteristics of flying-capacitance voltage and output voltage.关键词
三电平Buck变换器/多输入多输出系统/解耦控制/反步滑模控制Key words
Three-level Buck converter/multi-input multi-output system/decoupling control/backstepping sliding mode control分类
信息技术与安全科学引用本文复制引用
蒋经纬,陆益民..基于逆系统解耦的三电平Buck变换器反步滑模控制[J].电源学报,2024,22(2):73-80,8.基金项目
国家自然科学基金资助项目(52167021) （52167021）
广西自然科学基金重点资助项目(2018GXNSFDA281037)This work is supported by National Natural Science Foundation of China under the grant 52167021 （2018GXNSFDA281037）
Key Program of Natural Science Foundation of Guangxi under the grant 2018GXNSF A281037 （）
