Title :
Voltage source converter model for simulations of dynamic stability in meshed AC/DC systems
Author :
Bassini, M.T. ; Horita, M.A.B. ; Jardini, J.A.
Author_Institution :
Dept. of Energy & Autom., Univ. of Sao Paulo, Sao Paulo, Brazil
Abstract :
This paper presents the modeling of a voltage source converter (VSC) based on a phasor strategy suitable for implementation on stability softwares. This phasor is compared with a three-phase model for a point-to-point VSC transmission and then it is used in a dynamic stability study of a meshed VSC-HVDC grid connected to an AC system. The HVDC system evaluated comprises 14 DC terminals operating at ±400 kV or at ±200 kV, interconnecting islanded wind farms with hydroelectric based AC networks. The objective of the work is to evaluate the dynamic behavior of the asynchronous connections as well as the power interchange between the networks and its influence on its electromechanical stability. The effects of fault occurrences, line and converter contingencies are then analyzed.
Keywords :
AC-DC power convertors; HVDC power transmission; power system stability; HVDC system; asynchronous connections; dynamic stability simulations; electromechanical stability; meshed AC/DC systems; meshed VSC-HVDC grid; phasor strategy; point-to-point VSC transmission; power interchange; stability softwares; voltage source converter model; Mathematical model; Power conversion; Power system stability; Reactive power; Stability analysis; Voltage control; AC/DC grid; HVDC; Voltage source converter; power system stability;
Conference_Titel :
Transmission & Distribution Conference and Exposition - Latin America (PES T&D-LA), 2014 IEEE PES
Conference_Location :
Medellin
Print_ISBN :
978-1-4799-6250-1
DOI :
10.1109/TDC-LA.2014.6955178
