A novel decentralized control strategy for MultiTerminal HVDC transmission grids
Paper in proceedings, 2015

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.

MTDC

Droop control

HVDC

VSC

Multiterminal

Author

Georgios Stamatiou

Chalmers, Energy and Environment, Electric Power Engineering

Massimo Bongiorno

Chalmers, Energy and Environment, Electric Power Engineering

7th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2015, Montreal, Canada, 20-24 September 2015

2329-3721 (ISSN)

5794-5801

Areas of Advance

Energy

Subject Categories

Control Engineering

Other Electrical Engineering, Electronic Engineering, Information Engineering

DOI

10.1109/ECCE.2015.7310473

ISBN

978-1-4673-7150-6

More information

Created

10/7/2017