Robust LQR Control for PWM Converters with Parameter-Dependent Lyapunov Functions

被引：8

作者：

Aouani, Nedia ^{[1
]}

Olalla, Carlos ^{[2
]}

机构：

[1] Natl Sch Engn Tunis, Res Unit Syst Anal & Control, BP 37, Tunis 1002, Tunisia

[2] Univ Rovira & Virgili, Dept Engn Elect Elect & Automat, Tarragona 43007, Spain

来源：

APPLIED SCIENCES-BASEL | 2020年 / 10卷 / 21期

关键词：

uncertainty; PWM converters; LQR; LMIs; robustness; performance;

D O I：

10.3390/app10217534

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

This paper presents a novel framework for robust linear quadratic regulator (LQR)-based control of pulse-width modulated (PWM) converters. The converter is modeled as a linear parameter-varying (LPV) system and the uncertainties, besides their rate of change, are taken into account. The proposed control synthesis method exploits the potential of linear matrix inequalities (LMIs), assuring robust stability whilst obtaining non-conservative results. The method has been validated in a PWM DC-DC boost converter, such that it has been shown, with the aid of simulations, that improved robustness and improved performance properties can be achieved, with respect to previously proposed approaches.

引用

页码：1 / 13

页数：13

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