Title :
Analysis of response of VSC-based HVDC to unbalanced faults with different control systems
Author :
Du, Cuiqing ; Sannino, Ambra ; Bollen, Math H J
Author_Institution :
Dept. of Energy & Environ., Chalmers Univ. of Technol., Goteborg
Abstract :
This paper investigates the dynamic performance of a VSC-HVDC system under unbalanced faults in AC systems. Three different control systems are presented and analyzed for the most common unbalanced fault, i.e. single-line-to-ground fault (SLGF) in PSCAD/EMTDC. Simulation results show that the system resumes normal operation after fault clearing using all three control systems, among which the third control system produces the best transient performance
Keywords :
EMTP; HVDC power convertors; HVDC power transmission; electric current control; power overhead lines; power supply quality; power system CAD; power system control; power system transients; power transmission faults; AC systems; EMTDC; PSCAD; control systems; current controller; dynamic performance; fault clearing; power quality; single-line-to-ground fault; transient performance; unbalanced faults; voltage source converters-based HVDC system; Circuit faults; Control systems; Converters; Filters; HVDC transmission; PSCAD; Power conversion; Power quality; Pulse width modulation; Voltage fluctuations; High Voltage Direct Current (HVDC); Voltage Source Converter(VSC); different control system; unbalanced fault;
Conference_Titel :
Transmission and Distribution Conference and Exhibition: Asia and Pacific, 2005 IEEE/PES
Conference_Location :
Dalian
Print_ISBN :
0-7803-9114-4
DOI :
10.1109/TDC.2005.1547171
