DC overvoltage control during loss of converter in multiterminal voltage-source converter-based HVDC (M-VSC-HVDC)

Author

Lu, Weixing ; Ooi, Boon-Teck

Author_Institution

Dept. of Electr. Eng., McGill Univ., Montreal, Que., Canada

Volume

18

Issue

3

fYear

2003

fDate

7/1/2003 12:00:00 AM

Firstpage

915

Lastpage

920

Abstract

Security requires that a system continues to function even when any one subsystem fails. A multiterminal HVDC system consists of N voltage-source converters (VSCs) exchanging power through a DC network. When any one converter is lost, before the surviving (N-1) converters have time to re-establish a new power balance, the excess DC power can produce voltage spikes which are destructive to the power electronic switches. The paper shows that the advanced DC voltage controller (ADCVC), which is a higher hierarchical controller, can meet the targeted voltage margin.

Keywords

HVDC power convertors; HVDC power transmission; overvoltage; voltage control; DC network; DC overvoltage control; DC voltage controller; higher hierarchical controller; loss of converter; multiterminal HVDC system; multiterminal voltage-source converter-based HVDC; power balance; power electronic switches; security; voltage spikes; voltage-source converters; Centralized control; Control systems; HVDC transmission; Insulated gate bipolar transistors; Inverters; Power conversion; Rectifiers; Regulators; Switching converters; Voltage control;

fLanguage

English

Journal_Title

Power Delivery, IEEE Transactions on

Publisher

ieee

ISSN

0885-8977

Type

jour

DOI

10.1109/TPWRD.2003.813888

Filename

1208376