An Adaptive SOSM Controller Design by Using a Sliding-Mode-Based Filter and its Application to Buck Converter

被引：93
作者：
Liu, Lu [1 ,2 ]
Zheng, Wei Xing [2 ]
Ding, Shihong [1 ,3 ]
机构：
[1] Jiangsu Univ, Sch Elect & Informat Engn, Zhenjiang 212013, Jiangsu, Peoples R China
[2] Western Sydney Univ, Sch Comp Engn & Math, Sydney, NSW 2751, Australia
[3] Jiangsu Univ, Hightech Key Lab Agr Equipment & Intelligence Jia, Zhenjiang 212013, Jiangsu, Peoples R China
来源：
IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS I-REGULAR PAPERS | 2020年 / 67卷 / 07期
基金：
中国国家自然科学基金;
关键词：
Robustness; Heuristic algorithms; Buck converters; Uncertainty; Stability analysis; Voltage control; Australia; Sliding mode control; finite-time stability; adaptive law; adding a power integrator; Buck converter; OUTPUT-FEEDBACK STABILIZATION; STOCHASTIC NONLINEAR-SYSTEMS; TRACKING CONTROL;
D O I：
10.1109/TCSI.2020.2973254
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 paper, a novel adaptive second-order sliding mode (SOSM) control method is proposed by combining a new adaptive strategy with the backstepping-like technique. The new adaptive strategy is first constructed by means of the equivalent control for which a sliding-mode-based filter is employed rather than the widely-used low-pass filter such that the parameter restriction under the usage of low-pass filter can be relaxed. Then, by applying the proposed adaptive strategy and the idea of adding a power integrator, an adaptive SOSM method is established to finite-time stabilize the sliding variables. The feature of the proposed SOSM method lies in that the gain will vary with the size of the lumped uncertainty so as to avoid the overestimation of the gain. The stability analysis is given based on the finite-time Lyapunov theory. The theoretical results are finally applied to the voltage regulation problem of a Buck converter.
引用
收藏
页码：2409 / 2418
页数：10
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