Title :
Method for small signal stability analysis of VSC-MTDC grids
Author :
Rault, Pierre ; Colas, Francis ; GUILLAUD, XAVIER ; Nguefeu, Samuel
Author_Institution :
L2EP, Ecole Centrale of Lille, France
Abstract :
This paper deals with small signal stability analysis of Voltage Source Converter based Multitermial HVDC grids (VSC-MTDC). First, a simplified model is used to predict the voltage dynamic behavior. Next, a modular method to build the state space model of the overall MTDC system is described. Model validation is achieved in time domain by a comparison with an electromagnetic simulation in EMTP-rv. As concrete example of effective application, a parametric study on the droop value is carried on a 3-terminal meshed HVDC grid. This example attests to the effect of the droop parameter on the stability of the overall system.
Keywords :
HVDC power convertors; power grids; power system stability; time-domain analysis; 3-terminal meshed HVDC grid; EMTP-rv; VSC-MTDC grids; droop parameter; electromagnetic simulation; multitermial HVDC grids; simplified model; small signal stability analysis; state space model; time domain; voltage dynamic behavior; voltage source converter; Mathematical model; Power conversion; Power system stability; Stability analysis; Substations; Voltage control; EMTP; Modal analysis; Multi-Terminal DC (MTDC); Voltage Source Converter (VSC); Voltage control; small signal stability;
Conference_Titel :
Power and Energy Society General Meeting, 2012 IEEE
Conference_Location :
San Diego, CA
Print_ISBN :
978-1-4673-2727-5
Electronic_ISBN :
1944-9925
DOI :
10.1109/PESGM.2012.6345318
