A Back to Back HVdc Link With Multilevel Current Reinjection Converters

Author

Liu, Yong H. ; Perera, Lasantha B. ; Arrillaga, Jos ; Watson, Neville R.

Author_Institution

Inner Mongolia Univ. of Technol., Hohhot

Volume

22

Issue

3

fYear

2007

fDate

7/1/2007 12:00:00 AM

Firstpage

1904

Lastpage

1909

Abstract

A back to back (BTB) HVdc interconnector consisting of multilevel current reinjection (MLCR) converters is described, based on the parallel converter configuration. Since the MLCR creates a zero current region during the commutations, the proposed BTB configuration permits the continued use of thyristor valves, without loosing the control flexibility of the self-commutating process. Extensive EMTDC simulation is used to demonstrate the satisfactory response of the proposed BTB HVdc interconnector control structure to varying active and reactive power operating conditions.

Keywords

HVDC power convertors; commutation; power system simulation; reactive power; thyristor applications; EMTDC simulation; MLCR converters; back to back HVdc interconnector; back to back HVdc link; multilevel current reinjection converters; parallel converter configuration; reactive power operating conditions; thyristor valves; Bridge circuits; EMTDC; HVDC transmission; Helium; Inductors; Power system interconnection; Pulse width modulation; Thyristors; Valves; Voltage; Current source conversion; HVdc; self-commutating conversion;

fLanguage

English

Journal_Title

Power Delivery, IEEE Transactions on

Publisher

ieee

ISSN

0885-8977

Type

jour

DOI

10.1109/TPWRD.2007.899284

Filename

4265691