Title :
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
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;
Conference_Titel :
AC and DC Power Transmission, 11th IET International Conference on
Conference_Location :
Birmingham
Print_ISBN :
978-1-84919-982-7
DOI :
10.1049/cp.2015.0099
