Title :
AC fault ride-through of MMC VSC-HVDC systems
Author :
Beddard, A. ; Barnes, M.
Author_Institution :
Power Conversion Group, Univ. of Manchester, Manchester, UK
Abstract :
This paper focuses on the AC fault ride-through performance of an MMC VSC-HVDC link for the connection of a typical Round 3 windfarm or for the interconnection of two active AC networks. A high fidelity EMT model for these transmissions schemes is developed and simulation results are presented which show the compliance with the GB grid code for AC faults. An enhancement to the standard DQ current controller is also proposed which is shown to improve the transmission schemes power recovery response.
Keywords :
HVDC power convertors; HVDC power transmission; electric current control; power grids; power transmission control; power transmission faults; wind power plants; GB grid code; MMC VSC-HVDC systems; ac fault ride-through performance; active ac networks; high fidelity EMT model; high voltage direct current transmission systems; modular multilevel converter; power recovery response; round 3 windfarm; standard DQ current controller enhancement; transmissions schemes; voltage source converters; AC Fault ride-through; HVDC; MMC; VSC;
Conference_Titel :
Power Electronics, Machines and Drives (PEMD 2014), 7th IET International Conference on
Conference_Location :
Manchester
Electronic_ISBN :
978-1-84919-815-8
DOI :
10.1049/cp.2014.0382
