Laboratory-scaled STATCOM for unbalanced voltage sag mitigation by decoupled double synchronous reference current controllers

Author

Amaya-Rodriguez, Carlos Roberto ; Chu, Chia-Chi

Author_Institution

Department of Electrical Engineering, National Tsing Hua University, HsinChu, Taiwan, R.O.C.

fYear

2013

fDate

28-31 May 2013

Firstpage

1

Lastpage

6

Abstract

This paper presents implementations of a laboratory-scaled static synchronous compensator (STATCOM) for reactive power compensation for unbalanced voltage sags. In order to attenuate the effects of coupling terms between sequence components, double decoupled synchronous reference frame (DDSRF) current controllers are implemented. Under this framework, adequate decoupling between positive and negative sequence components can be achieved. PSCAD/EMTDC simulator is used to verify implementation results. A 2kVA, 220 V AC, 60 Hz laboratory-scaled STATCOM platform is constructed for evaluating the dynamic performance of the DDSRF-based STATCOM when unbalanced voltage sags occur in a weak grid.

Keywords

Automatic voltage control; Laboratories; Power quality; Reactive power; Voltage fluctuations; Voltage measurement; Double Decoupled Synchronous Reference Frame (DDSRF); Static Synchronous Compensator (STATCOM); Unbalanced Systems; Voltage Sag; Weak Grid;

fLanguage

English

Publisher

ieee

Conference_Titel

Industrial Electronics (ISIE), 2013 IEEE International Symposium on

Conference_Location

Taipei, Taiwan

ISSN

2163-5137

Print_ISBN

978-1-4673-5194-2

Type

conf

DOI

10.1109/ISIE.2013.6563617

Filename

6563617