Sliding mode observer for voltage sensorless current control of grid-connected converters

Author

Gehrke Tonin, Rodrigo ; Bernardes, Thiago ; Massing, Jorge R. ; Pinheiro, Humberto

Author_Institution

Group of Power Electron. & Control - GEPOC, Fed. Univ. of Santa Maria, Santa Maria, Brazil

fYear

2013

fDate

27-31 Oct. 2013

Firstpage

387

Lastpage

392

Abstract

This paper proposes a sliding mode observer for voltage sensorless grid-connected converter. The grid angular position required to the synchronous frame transformations is obtained through the estimated line voltage derived from a sliding mode grid current observer combined with a positive sequence separator. Simulations and experimental results demonstrated the simplicity and good performance of the proposed voltage sensorless approach.

Keywords

DC-AC power convertors; PWM power convertors; electric current control; observers; power grids; variable structure systems; voltage control; grid angular position; grid connected converters; sliding mode grid current observer; sliding mode observer; synchronous frame transformations; voltage sensorless current control; Current control; Observers; Particle separators; Pulse width modulation converters; Sensors; Vectors; Voltage control; Positive Sequence Separator; Sliding mode; Synchronism; Voltage Sensorless;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics Conference (COBEP), 2013 Brazilian

Conference_Location

Gramado

ISSN

2175-8603

Type

conf

DOI

10.1109/COBEP.2013.6785145

Filename

6785145