Control of AC-DC-AC converter under unbalanced and distorted input conditions

Author

Jasinski, Marek ; Kazmierkowski, Marian P. ; Bobrowska, Malgorzata ; Okon, Piotr

Author_Institution

Warsaw Univ. of Technol., Warsaw, Poland

fYear

2009

fDate

20-22 May 2009

Firstpage

139

Lastpage

145

Abstract

This paper investigates problems of grid voltage distortions and their influence on AC-DC-AC converter. A specific control algorithm is presented, which minimizes influence of voltage dips and higher harmonics on the system. Requirements for control of the Line (Grid) Side Converter (LSC) and Machine (Generator) Side Converter (MSC) are discussed. Effectiveness of proposed control scheme is verified with simulations and experimentally on 3 kW model. Solution is dedicated to variable speed energy systems (VSEGS) connected to high impedance grid, particularly wind farms or ocean wave energy converters such as WaveDragon MW.

Keywords

AC-DC power convertors; DC-AC power convertors; power supply quality; AC-DC-AC converter; power 3 kW; specific control algorithm; system harmonics; variable speed energy systems; voltage dips; Analog-digital conversion; Control systems; Mesh generation; Oceans; Power electronics; Renewable energy resources; Voltage control; Voltage fluctuations; Wind energy; Wind turbines;

fLanguage

English

Publisher

ieee

Conference_Titel

Compatibility and Power Electronics, 2009. CPE '09.

Conference_Location

Badajoz

Print_ISBN

978-1-4244-2855-7

Electronic_ISBN

978-1-4244-2856-4

Type

conf

DOI

10.1109/CPE.2009.5156026

Filename

5156026