Adaptive super-twisting sliding mode for DC-AC converters in very weak grids

被引：15

作者：

Hollweg, Guilherme Vieira ^{[1
]}

de Oliveira Evald, Paulo Dias ^{[2
]}

Tambara, Rodrigo Varella ^{[1
]}

Grundling, Hilton Abilio ^{[1
]}

机构：

[1] Univ Fed Santa Maria, Elect Engn, Av Roraima 1000,Predio 7 CT, BR-97105900 Santa Maria, RS, Brazil

[2] Fundacao Univ Fed Rio Grande, Intelligent Robot & Automat Grp NAUTEC, Rio Grande, Brazil

来源：

INTERNATIONAL JOURNAL OF ELECTRONICS | 2023年 / 110卷 / 10期

关键词：

Adaptive control; RMRAC; Super-Twisting; Voltage-Source inverters; LCL filter; weak grids; CONNECTED INVERTER; LCL-FILTER; CONTROLLER; DESIGN; STABILITY; SYSTEM; ORDER; CURRENTS;

D O I：

10.1080/00207217.2022.2118853

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：

This paper presents the design of a direct-type adaptive control structure for current regulation of a single-phase grid-tied Voltage-Source Inverter (VSI) with an LCL filter under very weak grid condition. The initial content of this work was previously published, where the controller was presented and its discrete-time stability proof was provided. Power converters connected to weak grids bring challenges to the control system, since the grid can change abruptly from a strong to a very weak condition , degrading system power quality. This study evaluates the feasibility of a RMRAC-based robust adaptive Super-Twisting Sliding Mode controller for current control of VSI when the grid inductance changes substantially, from 0 mH (strong grid) to 10 mH (very weak grid). To show the benefits of the control strategy and its robustness, hardware-in-the-loop (HIL) simulation results are presented, comparing its performance with two other controllers..

引用

页码：1808 / 1833

页数：26

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