Enhancement of grid transient stability using MMC-VSCH-VDC control

Author

Trinh, N.T. ; Erlich, I. ; Zeller, M. ; Wuerflinger, K.

Author_Institution

Inst. of Electr. Power Syst., Univ. of Duisburg-Essen, Duisburg, Germany

fYear

2015

fDate

10-12 Feb. 2015

Firstpage

1

Lastpage

6

Abstract

This paper presents a study on capabilities of High Voltage Direct Current connection (HVDC) based on Voltage Source Converter (VSC) technology in Modular Multilevel Converter (MMC) topology to enhance transient stability of a large power system in fast and large voltage fluctuation events. A fast voltage support (FVS) control is equipped to the standard control of the MMC-VSC station. The use of FVS control together with active/reactive power (P&Q) coordination control to maximize the capability of MMC-VSC-HVDC in supporting system voltage is analyzed. Furthermore, the performance of MMC-VSC station control operated under a special operational mode, STATCOM mode, during short circuit in DC grid is as well discussed and highlighted.

Keywords

HVDC power convertors; power grids; power system control; power system transient stability; reactive power control; static VAr compensators; substations; voltage control; DC grid transient stability enhancement; FVS control; MMC VSC HVDC control; P&Q coordination control; STATCOM mode; active power coordination control; fast voltage support control; high voltage direct current connection; large voltage fluctuation; modular multilevel converter topology; reactive power coordination control; voltage source converter technology; Large Power Systems; Modular Multilevel Converter; Transient Stability; Voltage Stability; Voltage-Sourced Converter;

fLanguage

English

Publisher

iet

Conference_Titel

AC and DC Power Transmission, 11th IET International Conference on

Conference_Location

Birmingham

Print_ISBN

978-1-84919-982-7

Type

conf

DOI

10.1049/cp.2015.0099

Filename

7140581