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A novel decentralized control strategy for MultiTerminal HVDC transmission grids

Georgios Stamatiou (Institutionen för energi och miljö, Elteknik) ; Massimo Bongiorno (Institutionen för energi och miljö, Elteknik)
7th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2015, Montreal, Canada, 20-24 September 2015 (2329-3721). p. 5794-5801. (2015)
[Konferensbidrag, refereegranskat]

The concept of Voltage Source Converter based MultiTerminal High Voltage Direct Current (VSC-MTDC) grids, represents both challenges and opportunities for the future of large power transfer and integration of renewable energy sources. For this kind of grids, the control aspect is of great importance, with voltage-droop based methods considered as one of the most attractive solutions. All existing strategies are designed to maintain the level of voltage in the MTDC grid constant during unexpected events, thus sacrificing the power flow. The aim of this paper is to propose a new droop controller structure that maintains the dc-grid voltage close to the nominal values and at the same time tries to preserve the power flow in the dc grid, following events such as faults or disconnection of stations. The control scheme is presented and simulations are carried out in a four-terminal MTDC grid, proving the validity of the concept.

Nyckelord: VSC, HVDC, Multiterminal, MTDC, Droop control

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Denna post skapades 2015-10-05. Senast ändrad 2016-08-23.
CPL Pubid: 223647


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Institutioner (Chalmers)

Institutionen för energi och miljö, Elteknik (2005-2017)



Chalmers infrastruktur