A transformerless high-pulse static synchronous compensator based on the 3-level GTO-inverter

Author

Hatziadoniu, C.J. ; Chalkiadakis, F.E.

Author_Institution

Dept. of Electr. Eng., Southern Illinois Univ., Carbondale, IL, USA

Volume

13

Issue

3

fYear

1998

fDate

7/1/1998 12:00:00 AM

Firstpage

883

Lastpage

888

Abstract

This paper presents a high-pulse shunt compensation scheme based on the three-level GTO-inverter which requires a minimal magnetic interface. The scheme utilizes small inductors, rather than phase-shifting transformers, for combining several three-level inverters to a high-pulse static synchronous compensator. The resulting arrangement has an output harmonic profile comparable to a 48-pulse inverter. A suitable control scheme is developed for the proposed compensator which provides smooth VAr control for the network. Simulation studies are presented in the paper, which demonstrate that the proposed design could decrease the complexity of advanced compensation schemes

Keywords

DC-AC power convertors; invertors; power inductors; static VAr compensators; thyristor convertors; high-pulse shunt compensation scheme; output harmonic profile; small inductors; smooth VAr control; three-level GTO-inverter; transformerless high-pulse static synchronous compensator; Automatic voltage control; Frequency; Inductors; Inverters; Power harmonic filters; Reactive power; Shunt (electrical); Thyristors; Transformers; Voltage control;

fLanguage

English

Journal_Title

Power Delivery, IEEE Transactions on

Publisher

ieee

ISSN

0885-8977

Type

jour

DOI

10.1109/61.686988

Filename

686988