Adaptive Energy-Based Control for Buck Converter With a Class of Nonlinear Loads

被引：8

作者：

He, Wei ^{[1
]}

Namazi, Mohammad Masoud ^{[2
]}

Guerrero, Josep M. ^{[3
]}

机构：

[1] Nanjing Univ Informat Sci & Technol, Sch Automat, Nanjing 210044, Peoples R China

[2] Univ Isfahan, Dept Elect Engn, Esfahan 8174673441, Iran

[3] Aalborg Univ, Ctr Res Microgrids, AAU Energy, DK-9220 Aalborg, Denmark

来源：

IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-EXPRESS BRIEFS | 2022年 / 69卷 / 12期

基金：

中国国家自然科学基金;

关键词：

Buck converter; nonlinear loads; energy-based control; adaptive control; observer; DC; SYSTEMS;

D O I：

10.1109/TCSII.2022.3176258

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

In this brief, the problem of voltage regulation of buck converter with a class of nonlinear loads is addressed by using an adaptive energy-based controller. It is noted that the existing results mainly cope with converters feeding one or several nonlinear loads. Other types of loads do exist in power systems. Therefore, based on the passivity theory and a coordinate transformation, this brief proposes a new energy-based controller to stabilize buck converter with a class of nonlinear loads. It is ensured that the closed-loop system is a port-Hamiltonian system with exponential convergence. Then, the estimated terms generated by a designed disturbance observer are forwarded to energy-based controller to reduce the influence of the time-varying disturbances on the system. The experiment test is conducted by means of the setup of buck converter with a constant power load. The simulation and experimental results verify the effectiveness of the designed controller.

引用

页码：4869 / 4873

页数：5

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