Title :
Comparison of direct voltage control methods of multi-terminal DC (MTDC) networks through modular dynamic models
Author :
Pinto, R. Teixeira ; Rodrigues, S.F. ; Bauer, Pavol ; Pierik, Jan
Author_Institution :
Tech. Univ. Delft, Delft, Netherlands
fDate :
Aug. 30 2011-Sept. 1 2011
Abstract :
Estimates are that circa 40GW of offshore wind power capacity is going to be installed throughout Europe by the end of this decade. In this scenario, a pan-European offshore grid network is needed in order to efficiently integrate large amounts of offshore wind into the different European countries´ transmission networks. In this paper, the dynamic model of multi-terminal HVDC (MTDC) transmission system composed of voltage-source converters is presented. Afterwards, the dynamic models are used to compare four different methods for controlling the DC voltage inside MTDC networks, viz.: droop control, ratio control, priority control and voltage margin control. Lastly, a case study is performed in a four-node MTDC network and the different control strategies are compared.
Keywords :
HVDC power transmission; offshore installations; power transmission control; voltage control; wind power plants; direct voltage control; droop control; modular dynamic models; multiterminal DC networks; multiterminal HVDC transmission; offshore wind power capacity; pan-European offshore grid network; power 40 GW; transmission networks; voltage-source converters; Biological system modeling; HVDC transmission; Mathematical model; Power conversion; Steady-state; Voltage control; Control methods for electrical systems; Multi-terminal HVDC; Voltage Source Converter (VSC); Wind energy; power transmission;
Conference_Titel :
Power Electronics and Applications (EPE 2011), Proceedings of the 2011-14th European Conference on
Conference_Location :
Birmingham
Print_ISBN :
978-1-61284-167-0
Electronic_ISBN :
978-90-75815-15-3